Laptop Mixing

Anyone have any experience or sage advice on the subject? I have around 200-250 to spend but can't decide what is going to be the best solution for that price range. Should I go with some kind of controller interface, or just get a 2 channel audio interface and a traditional dj mixer? Is the M-audio X-session as crappy as it looks (And Id still need some kind of audio interface to cue)? What about USB mixers (Numark makes a couple inexpensive ones)?

Seems like there are really inexpensive options like the x-session or the numark dual-usb mixer, and then theres really expensive stuff like x-zones, with the only middle ground being the vestax controller which would still require some kind of audio interface.