That's a good power suply,a dn the p180 is an awesome case. I have no clue how well the radeon 9800 will play Elder Scrolls, but the 3200 will hadle it with ease.
http://arstechnica.com/reviews/games/oblivion.ars/5
Ars did a small review about the game, and the guy used a 6800GT, a card that's...