It will be good. But for 2k you can get a loaded dell 1705 that has a much more powerful 7900gs card. Even tho it's a Dell and it looks fugly, it's a better machine for possibly less if you go the outlet way. But even brand new, it's gonna be under 2k and be more powerful.
Heck, for 600 less you can get an Asus A8js that has a better card in the 7700.