But if you're looking for recommendations, among the latest xbox games I played was the Metal Gear Solid HD Collection, which was well worth the price. Each MGS game by itself is fairly short, only 20 hours or so (or substantially less if you really know what you're doing), but the collection has 3 games on it, so it's quite the steal. Witcher 2 would also be a good pick for the xbox probably, though I've only played it on PC so I don't know how good the port is.

Dunno if you've already played either, or care for either of them, but those are the first two not too obvious game recommendations I can think of.