I know I used to see roach breeder websites all the time when I still had my tarantulas but I can't seem to find any right now.

This is the only site I can find right now:
http://www.blaberus.com/FORMgallery2.htm

He has some positive reviews too:
http://www.arachnoboards.com/ab/showthread.php?t=42569

From my understanding they are much easier to breed than crickets, so if you have other pets you could feed these to that would be a plus Or you might end up with a bunch of roaches on your hand!

I know I've seen a setup for a roach colony on arachnoboards before, I'll see if I can find it and send you the link