Yeah Oblivion is an awesome game, one that people should try I think, even if you don't like RPG's. Warning, it'll take you 100Hrs+ to finish it!
I also like Perfect Dark Zero a lot, outstanding game that requires a lot of strategy and thinking. Excellent first person shooting action, and can't wait to play it online.
Unfortunately, I traded in my original XBOX in when I got my X360, since I thought it was backwards compatible. I now can no longer play Morrowind from the original Xbox
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