If you are doing typical recreational diving with the option of doing Nitrox now or in the future, Just about any computer from Palaegic Pressure Systems will suit you. These folks make many of the "hocky puck" computers such as the Oceanic and Genesis Line.
I own a Genesis React and think it is just fine. Easy to read and setup up, nitrox capable, PC downloadable, user changeable batteries, and many other features that make it a good choice.
I feel that air integrated computers are for me just yet since I am not particulary interested in knowing my tank pressue to 10 psi or how fast I'm consuming it. So far the plain old SPG is fine for me.