I raise my own crickets. Once you get the hang of it they are easy to deal with. You just can't raise a few though, typically I find that its easier to raise them in broods of 500+. I only have two FBT's so most of them are destroyed and go in the compost pile. I wouldn't raise them in your house though.

Whether crickets are the most appropriate food for your frogs, I can't say. That be better ask in the sub-forum for them.