So I am looking to build a new computer soon, and I am still fairly confused with the new SLI stuff. I would like to try SLI on this computer, and I would like to use Nvidea products, I love my 6800GT.

My main question is this, Normally since i like to buy near the top of the line for video cards, I buy 512MB cards, With dual cards, would it be prudent to get 384MB cards, since I save quite a bit (because I am buying 2) or should I shell out the extra 50-100$ per card to have it 512 instead of 384?

Also, is it a bad idea to buy 2 different cards? I.e. a 8800gs 384MB, and a 9800 512MB, or should I stick with them both the same.

Also, from reading the Intel vs AMD post, it would seem Intel is the way to go. I run 2 monitors, different sizes, 1 LCD, 1 of the old nasties. Along with that, I should be going for Vista over XP correct? Esp since I plan on going with a dual core? 64 Bit Vista right? As far as processors, should I be looking at quad or dual core? I would like to buy high-mid range in quality. Dual core has been out for a little while, but quad is quite new, so I was just wondering what your thoughts were on the subject.

I read some where there was a restriction on ram, if you were useing vista or XP, I forget which though. Do you know the story behind that? Id like to run 4gigs of DDR2 ram



Sorry if this is off topic, I just figured quite a few of you know a bit about computers, and it's been a few years since I did some good research.