Graphically, how many sprites can you handle?
Most of the older stuff is where the best storylines are.
But if you hold out, this year is gonna be pretty big on releases; there are some pretty hyped titles (many, many sequels) coming.
(nb: some are much more swerving toward action-adventure than your classic RPG, but will do the job nonetheless!)
Gothic IV
Dragon Age 2
Last Guardian
The Witcher 2
Fable 3
Diablo III
Elder Scrolls V
Demons Souls 2
Two Worlds 2
Mass Effect 3
edit: and OMG how on earth did I forget - Deus Ex: Human Revolution (YEAAHH)!!?
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