I second the idea of ordering your crickets from Ghann's. They're crickets do run a little on the small side though. So whatever size you think you need, you might want to go a size or two bigger.
Also, I recommend ordering Phoenix Worms directly from the dealer, rather than any of the resellers. "Phoenix Worm" is a brand name, so anyone else selling them has to have them shipped to themselves, THEN shipped to you.