I posted an earlier version of this yesterday, and thank you everyone who helped me with it. I figure I will post each component and a justification/question about it, please comment and/or recommend better or cheaper parts.
1) Mother Board ASUS M4A78T-E AM3 DDR3 AMD 790GX ATX AMD Motherboard - Retail
I hope this is a good mb for what I'm doing. This is where I have the least experience. I picked it because of the AM3 socket (in case I want to upgrade later) and the DDR3 RAM. My price range was in the 120$ range.
2) Processor AMD Phenom II X4 810 2.6GHz Socket AM3 95W Quad-Core Processor Model HDX810WFGIBOX - Retail
This processor seems like a great deal for good performance. From what I posted before I gathered that was the consensus. Out of the entire computer, this is the part I am most "sold" on. My budget was around 175$.
3) Graphics Card EVGA 896-P3-1257-AR GeForce GTX 260 Core 216 Superclocked Edition 896MB 448-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail
I don't know much about graphics cards. From previous experiences I am partial to Nvidia, but if there is a much better card for the price, I could change in seconds. I am fairly certain that for the price this is a decent card, but please recommend anything you think could fill this spot better/cheaper?
My budget is around 200$, but can become flexible for a good deal.
Also how can I make sure that this is compatible with the Motherboard?
And which is better the normal or overclocker version?
EVGA 896-P3-1265-AR GeForce GTX 260 Core 216 896MB 448-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail
4) Case XION Onyx XON-303 Black/Blue Steel ATX Mid Tower Computer Case - Retail
I choose this case, due to the 3 good sized fans for cooling. Nice looks (this is my first built computer, so I wanted the clear sides with blue LEDs). And good size. Budget around 50$ish.
5)Power Supply CORSAIR CMPSU-850TX 850W ATX12V 2.2 / EPS12V 2.91 SLI Ready CrossFire Ready Active PFC Power Supply - Retail
This is another part I am very unsure about. I have been told it is a good power supply, and the 850W should be about right for my system. I realize how crucial a good PSU is the system, so I want to make sure this is good.
Budget approx: 140$
6) RAM A-DATA 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Dual Channel Kit Desktop Memory Model HY63I1B16KN - Retail
I'm getting 2 sets of this for 8 gigs, which I am told Vista 64-bit can handle. I choose this based on the speed and the fact that I need DDR3 RAM. I have never heard of the company before and all RAM seemed about the same price. If there is a better company please tell me. Budget: 60$ Per set.
7) Hard Drive Seagate ST3640323AS 640GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM
Generic 640GB HD, with 7200 RPM and it is SATA 3.0. Anything else need to be said? Budget 75$.
This is my build I hope it is up to spec, and that I am getting a good deal. If not please tell me. The items I am most worried about are the Motherboard, the Power Supply, and the Video Card.
Thank you very much for your help and time.
1) Mother Board ASUS M4A78T-E AM3 DDR3 AMD 790GX ATX AMD Motherboard - Retail
I hope this is a good mb for what I'm doing. This is where I have the least experience. I picked it because of the AM3 socket (in case I want to upgrade later) and the DDR3 RAM. My price range was in the 120$ range.
2) Processor AMD Phenom II X4 810 2.6GHz Socket AM3 95W Quad-Core Processor Model HDX810WFGIBOX - Retail
This processor seems like a great deal for good performance. From what I posted before I gathered that was the consensus. Out of the entire computer, this is the part I am most "sold" on. My budget was around 175$.
3) Graphics Card EVGA 896-P3-1257-AR GeForce GTX 260 Core 216 Superclocked Edition 896MB 448-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail
I don't know much about graphics cards. From previous experiences I am partial to Nvidia, but if there is a much better card for the price, I could change in seconds. I am fairly certain that for the price this is a decent card, but please recommend anything you think could fill this spot better/cheaper?
My budget is around 200$, but can become flexible for a good deal.
Also how can I make sure that this is compatible with the Motherboard?
And which is better the normal or overclocker version?
EVGA 896-P3-1265-AR GeForce GTX 260 Core 216 896MB 448-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail
4) Case XION Onyx XON-303 Black/Blue Steel ATX Mid Tower Computer Case - Retail
I choose this case, due to the 3 good sized fans for cooling. Nice looks (this is my first built computer, so I wanted the clear sides with blue LEDs). And good size. Budget around 50$ish.
5)Power Supply CORSAIR CMPSU-850TX 850W ATX12V 2.2 / EPS12V 2.91 SLI Ready CrossFire Ready Active PFC Power Supply - Retail
This is another part I am very unsure about. I have been told it is a good power supply, and the 850W should be about right for my system. I realize how crucial a good PSU is the system, so I want to make sure this is good.
Budget approx: 140$
6) RAM A-DATA 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Dual Channel Kit Desktop Memory Model HY63I1B16KN - Retail
I'm getting 2 sets of this for 8 gigs, which I am told Vista 64-bit can handle. I choose this based on the speed and the fact that I need DDR3 RAM. I have never heard of the company before and all RAM seemed about the same price. If there is a better company please tell me. Budget: 60$ Per set.
7) Hard Drive Seagate ST3640323AS 640GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM
Generic 640GB HD, with 7200 RPM and it is SATA 3.0. Anything else need to be said? Budget 75$.
This is my build I hope it is up to spec, and that I am getting a good deal. If not please tell me. The items I am most worried about are the Motherboard, the Power Supply, and the Video Card.
Thank you very much for your help and time.
If you want more on the benchmarks, read here: 
