I preferred Shaun of the Dead, but moreover I prefer Spaced, the sitcom type series that started it all. Go buy the box set of Spaced now, 2 series, about £12, and more laughs than you'll get in 20 series of the Office.
I can see them tackling space next, like some sort of sci-fi comedy, like Red Dwarf. I seriously think they're just waiting on a budget big enough to do a proper sci-fi comedy film.
I see the Peep Show guys have made a movie now, no doubt trying to replicate Pegg and Co's success, Peep Show rocks, I hope their movie is up to scratch.