If you can find a Ridgid contractor saw, go for it. I think they are out of stock for now until they bring back the granite top saw or come out with a new model. The new Porter Cable at Lowe's is very nice for the price and won't disappoint. I went with the Hitachi C10-FL earlier this year because it was on clearance and honestly, it wasn't much different than the Porter Cable other than the PC has a 36" rip and the Hitachi has a 24" rip. Also the PC has a riving knife which is a very nice feature in a saw. Both have decent caster systems if you need it to be mobile in your shop. Other than that, they are identical.
I would stay away from mobile saws unless you need it to be mobile. A "contractor" saw or hybrid tends to be a bit beefier. Also I don't know if dust collection is an issue for you or not, but be sure to check that out too.
I have heard that the craftsman isn't on par with the others I have mentioned concerning build quality but for the price it may be worth a look.
Whichever saw you buy make sure you take the time to assemble it properly and go through the necessary tune-up procedure. Align the fence with the blade, make sure the blade is exactly 90 degrees to the table, etc. It won't come perfect out of the box.
Good luck.
-Psych0