I'm primarily a DJ with a few years experience but no background in music making or gear. I've messed around with ableton, but as someone new to making beats I usually get bogged down looking at such open-ended programs. I figure an su700 would be a good choice to get my feet wet in beat/music making, and additionally use it for a bit of looping and superfluous beats during dj sets. Worst case scenario, I read it has some decent effects.
So, good choice? Keep in mind I'm not looking for the end-all sampling and performance unit. I just want something fairly cheap to learn on, use during dj sets, and maybe spur a little creativity.