Entroper on 23 November 2007
I think you would find Metroid Prime and Echoes too difficult, but Corruption has an easy difficulty that would be much more palatable. It's also an absolutely fantastic game, and much like Zelda from a first-person perspective. As I've said previously, Metroid is the intersection of Mario, Zelda, and Megaman. Go for it.
Other suggestions:
Trauma Center
Mercury Meltdown Revolution (it's 20 bucks!)
You've already shot down my other suggestions.
