how much of a performance increase should i get

[Rabidpirate]

How much of a performance increase should I recieve (in a gaming perspective) from my computer, to the one I am going to be building over the next few weeks.


Old Specs
-AMD athlon xp 2600+ (oc to 2800+)

-768mb pc 2100 ram

-eVGA Geforce 6800 128mb (AGP 8x)

-80 gig 7200rpm HD

-Gigabyte GA-7VT600
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New Specs
-AMD Athlon 64 3200+ Venice 1GHz FSB 512KB L2 Cache Socket 939 Processor

-GIGABYTE GA-K8NSC-939 Socket 939 NVIDIA nForce3 250Gb ATX AMD Motherboard

-CORSAIR ValueSelect 1GB 184-Pin DDR SDRAM Unbuffered DDR 400 (PC 3200)

-eVGA Geforce 6800 128mb (AGP 8x) <kept from last PC

-80 gig 7200rpm HD <kept from last pc

-20 gig 7200rpm HD <one i dug up from the computer i had before the one i have now



Also, I burnt out my last power supply (400 watt) fooling around w/ a powered computer (big mistake). Anyway, i replaced my good PSU with the one that came with the case I bought (350 watt, but im not sure if it really is). So my question is, will i be able to run the new parts i am buying w/ my old power supply, or will i have to by a new PSU like the one listed below?

http://www.newegg.com/Product/Product.asp?Item=N82E16817153005

 

[PatrickK]

oh wow quite a bit. not lal that much better, but you'll notice a difference.

 

[Rabidpirate]

Also i have another question.

I bought a thermaltech (i think thats the brand, it says Tt on it) heatsink for my CPU, which is socket A. Will the heatsink fit the new processor, because in that case, i'll buy a really good one so i can overclock the heck out of the 3200.