RIDGID ¼ Sheet Sander
I really like this sander. It is my favorite sander because of its comfort. ¼ sheet sanders are convenient in that I buy sheets of sandpaper and separate them into 4 pieces. This sander has a special tool to punch holes in those sheets once they are on the sander. It also has a very nice hard case.
SKIL 2"x18" Belt Sander
For an inexpensive sander this one isn't bad. The self centering feature works pretty good.  It's also really easy to change belts.  A lot of the dust it creates actualy ends up in the bag.
Black & Decker Sandstorm
At the time I bought this I really liked that it was both a sheet sander and a random orbital sander.  The problem is that the sheets are special and only made by Black & Decker. It's also to big.  The point does make it good for getting into tight spots though.