Home media blast systems. What do I need?

I have been using a guy near work to blast parts, but I have a number of things to blast now and am weighing the idea of buying my own. I know I will have more stuff to blast in future, and can find reasons to blast even more.

I guess I would want to use both glass beads for things like intakes, valve covers, dizzies etc. and sand or other abrasive for brackets, headers blah blah. So, what do I need? I have a decent compressor. I have some dirty parts. I need something to go in between those two things.

Is Harbor Freight the place for this stuff or what?

"That wasn't any farewell slap." -Dick Powell