A good friend of mine recommended getting the opinions of the collected lurkers around here, so I thought I would submit the build I'm intending to create, and let ya'll poke and prod at it, and point out any glaring flaws, ludicrously over-priced selections I've made, or areas for improvement overall.
I'm basically looking to build a pretty monsterous gaming machine, able to easily handle anything that I throw at it with flying colors, without melting down horrifyingly before my eyes. I know little to nothing about safely overclocking, but I'm open to the idea if it won't fry anything, and it will save me some dollars. Upgradability in the future is also of interest to me, considering I'm unlikely to purchase something this expensive for quite a few years, so being able to upgrade a piece at a time would be amazing.
So, yeah. Have at it, as ya'll are clearly much more adept than I am at this. I've included links for everything for easy glancing at detailed specs, if that helps.
For gaming more than 4GB wont help since games are usually 32 bit applications and as such can only use at most 2GB of memory. Drop it down to 4GB to save some and you will end up with the same performance.
In addition, consider the 1gb version of the GTX460. It is stronger, and you will need the ram for triple monitors. You will be driving about 6m pixels. Look at benchmarks for 2560 x 1600 and add 50% to see what you need. GTX470's might be better.
Definitely get three IDENTICAL monitors. You don't want size changes when you drag things around.
As for the Radeon HD 6850 however, things are much more lopsided in AMD’s favor. It’s give and take depending on the benchmark, but ultimately it’s just as fast as the GTX 460 1GB on average, even though it’s officially $20 cheaper. And at the same time it draws less power and produces less noise than the GTX 460 1GB. In fact unless the GTX 460 1GB was cheaper than the 6850, we really can’t come up with a reason to buy it.