I used to own rats (males) and I miss them SO MUCH! They are awesome pets, but do require more attention and upkeep than people expect. If it weren't for my cramped quarters and their delightful odor ;) I would have them again in an instant! I personally prefer the cuddly boys, but they do smell more!
Obviously you've been doing a lot of research, but I'm happy to offer advice or answer questions you may have. Not that I'm an expert, but I do consider myself experienced :)
Edit: Also I strongly encourage looking into a rescue for your new friends. I was involved in some rescue efforts, and while I dont know the situation in rescue, I imagine it is just as if not more dire than it was years back when I was in the rat world. Also, frequently the rats have been evaluated and socialized, and will be healthier off the bat then MOST pet store stock.
Last edited by Quinn; 08-29-2013 at 11:24 AM.