First build, two options, roughly $2000 limit. Advice? :)

[Toastie]

Hey guys, ive reached a time where i have the ability to build my own computer and I have done research and come up with two options. The first is a more budget version, the second is far more performance oreintated, pricier but with lastability (i hope). This is my first build so advice is greatly appreciated, if you can see areas where i could replace parts for greater value, please feel free to say so

All prices are in $NZD. And screens not important at this point.

### 1st Revision###

Motherboard - Asus P7P55D Asus P7P55D - Find the lowest price, product reviews and information about Motherboards $244.69

CPU - Intel Core i5 750 2.66GHz Socket 1156 Box Intel Core i5 750 2.66GHz Socket 1156 Box - Find the lowest price, product reviews and information about CPUs $309.00

GPU - Sapphire Radeon HD5770 HDMI DisplayPort Dual-DVI 1GB Reviews of Sapphire Radeon HD5770 HDMI DisplayPort Dual-DVI 1GB $269.61

RAM -

Cooler - Arctic Cooling Freezer 7 Pro Rev. 2 Product Details for Arctic Cooling Freezer 7 Pro Rev. 2 $56.60

System Drive - Western Digital Caviar Blue WD6400AAKS 16MB 640GB Western Digital Caviar Blue WD6400AAKS 16MB 640GB - Find the lowest price, product reviews and information about 3.5 inch S-ATA hard disk drives $89.72

Optical Drive - Samsung SH-S223F Samsung SH-S223F - Find the lowest price, product reviews and information about DVD burners $44.74

Power Supply - Corsair CMPSU-750TX 750W User reviews for Corsair CMPSU-750TX 750W $224.85

Case - Cooler Master Dominator CM 690 (Black) Reviews of Cooler Master Dominator CM 690 (Black) $114.29


###Second Revision###

Motherboard - Asus P6T SE Asus P6T SE - Find the lowest price, product reviews and information about Motherboards $331.72

CPU - Intel Core i7 920 2.66GHz Socket 1366 Box Reviews of Intel Core i7 920 2.66GHz Socket 1366 Box $492.28

GPU - Sapphire Radeon HD5850 HDMI DisplayPort Dual-DVI 1GB Sapphire Radeon HD5850 HDMI DisplayPort Dual-DVI 1GB - Find the lowest price, product reviews and information about Graphics cards (PCI Express) $518.18
OR
Sapphire Radeon HD5870 HDMI DisplayPort Dual-DVI 1GB Sapphire Radeon HD5870 HDMI DisplayPort Dual-DVI 1GB - Find the lowest price, product reviews and information about Graphics cards (PCI Express) $753.86
OR
Sapphire Radeon HD5770 HDMI DisplayPort Dual-DVI 1GB Reviews of Sapphire Radeon HD5770 HDMI DisplayPort Dual-DVI 1GB $269.61

RAM - Kingston ValueRAM DDR3 PC10600/1333MHz CL9 2x2GB Kingston ValueRAM DDR3 PC10600/1333MHz CL9 2x2GB - Find the lowest price, product reviews and information about DDR3 memory sticks $179.04

Cooler - Thermalright Cogage True Spirit Thermalright Cogage True Spirit - Find the lowest price, product reviews and information about CPU coolers $50.00

System Drive - Western Digital Caviar Blue WD6400AAKS 16MB 640GB Western Digital Caviar Blue WD6400AAKS 16MB 640GB - Find the lowest price, product reviews and information about 3.5 inch S-ATA hard disk drives $89.72

Optical Drive - Samsung SH-S223F Samsung SH-S223F - Find the lowest price, product reviews and information about DVD burners $44.74

Power Supply - Corsair CMPSU-750TX 750W User reviews for Corsair CMPSU-750TX 750W $224.85

Case - Cooler Master Dominator CM 690 (Black) Reviews of Cooler Master Dominator CM 690 (Black) $114.29


I really want a 5870, but i realise it is very expensive, so im figuring i could start with a 5850 or 5770 and upgrade to a 5870 further down the track.

Thoughts? Advice?