1tankneverenuff
I am into the same thing right now. I'm not terribly interested in breeding Apple Snails, but they breed for my very readily, and I have about 20 large (1.5" diameter) specimens now from an original 1 (females store the milt and can reproduce long after a male has left the tank). Many, many more I have given away.
I am much more interested in breeding plecos, though. I am currently trying to breed 2 species: L183, the white seam ancistrus (a bristlenose, but not nearly as easy to breed as standard bristlenoses and albinos); and a spotted ancistrus (not sure on the L-number). I must, must get some pictures of my guys up on the site, because they're really some of the best-looking plecos I've ever come across. Got them from Exoticfines on Aquabid. He sells nice, healthy specimens, which he quarantines. Though they are not cheap, they're good quality, and local, so I can stop by his house to get them when I want.
The best accounts of pleco spawnings, I believe, are on
www.planetcatfish.com. Here's the link to Shane's World, the section devoted to spawning catfish.
http://www.planetcatfish.com/shanesworld/index.php
Lots of stories about Hypancistrus zebra spawnings (amongst others).
And another good place to get supplies is on Aquabid.com. They sell breathable bags there, amongst other things. Just go to "Shipping Supplies" on the main page.
I'll try to post some pictures of my breeding setups tonight. Remind me if I forget, and if you're interested.