Originally Posted by Katreat
SLI is a way to make the best better. For the price of an SLI board, bigger PSU, and a second 8600 you could have just gotten the low end 8800 and been miles ahead on performance. So unless money is of no concern and you can buy two of the best cards out there you will be money ahead just buying what the budget allows now and then upgrading 2-3 years down the road to something better.
Agreed. If money is no object and you want the absolute best performance, then yes, by 2 top of the line cards and run SLI. But it's not a good idea to get 2 mid-grade cards instead of one high-end card. The high-end card will be cheaper, faster, quieter, and cooler than the 2 cards will be running together. When it comes to future upgrades, you'll be better off getting a new card than another old one.