new system parts list - some help please

[chickenNcheese]

am looking to get a new system. some parts are migrating from the old computer so i dont need anything not mentioned on this list

Mother Board:
ASUS A8N-VM
do i really need the sli version? in terms of gfx performance is SLI worth spending the money on the other card as well + paying extra for the motherboard?

CPU:
Athlon 64 or Semperon or Athlon 64x2 (dual core)
as far as i know not many things are designed to use the 64 bit system. is it worth it - as in will it run everything just as well as the 32 but be an investment for later. also will games run on it better than 32? and if i do get the 64 should i get dual core - is it worth it?

RAM:
2/3x512 DDR400

HDD:
2x250GB Western Digital 8MB
sata or ide?

Graphics:
GeForce 7800 PCI-E
is there a 512mb one or just 256?

Power Supply:
i have no idea what wattage etc. need help here


also is water cooling worth the money?

 

[Tyler1989]

512mb video cards cost 700+ USD not worth your cash.

 

[Avalanch3]

water cooling is worth the money if you plan on OC'ing

get the 256mb 7800GTX

600Watt PSU or even a 550Watt

if you can afford it get the 4800+ Dual Core

SLi board i would get...incase you want to put another 7800GTX in there in the future

HDD i like IDE but thats just me....

the ram...maybe get 2x1gb sticks...or 4x512mb

 

[The_Tobes99]

Unless you are DEFINITELY plannung SLI i wouldnt go anywhere above 450W, I've read somewhere (I cant remember) that if you have a 600W PSU & only use 350W that it is EXTREMELY inefficient, will cost more to run & generates LOADS more heat.

 

[Sprooty]

I would not go with SLI, its just a waste of money. One card can handle all the games out ATM.

I would go with SATA HDs, they are alot neater in the case (if u know what i mean?) OH yeah, and get some HDs with NCQ.

A dual core CPU may not be worth it right now, but over the next year we will see games released with support for Dual Core CPUs, boosting performance by %30+.