Just get two 280 GTX's. There is hardly any performance boost from going 2X 280GTX's to 3.
Actually, some of the games show LESSER performance with Tri-SLi.
Just because people don't trust charts like that, doesn't mean they hate AMD. Personally, I have always been an AMD fan but I still thank that chart is BS.
I want to see some actual benchmarks when Phenom II's gets released.
3Dfx Voodoo 3 > Radeon 9600 Pro > Radeon 9800 Pro > Radeon X1300 (Died few months after) > Nvidia 6800 Ultra (Still going strong in my second PC) > Nvidia 7600GT (Later on added a second card for SLi) > Radeon HD3870 (Died) > Nvidia 9800GTX > and hopefully, a 280 GTX in few days.