I've never been one for tiny rodents, so may I suggest
guinea pigs.
Guinea Pig ProsThey're snuggly.
My book, at least, says that they squeal when they hear you coming if they associate you with food. Which would be an ego boost, I think.
They can live quite happily in a cardboard box.
Low maintence, easy to please pet.
And I really don't know any cons for them. Best ask Igg. Chinchillas, I've heard, are nice pets, too, but are pretty expensive. I don't like gerbils. Or mice. Or hamsters. Or anything else tiny and obnoxious. So I'd be biased if I went on about them. A rabbit seems like a good idea, though. There are lots of rabbits in shelters, which makes them people friendly (I would assume) and a lot cheaper.
Good luck with that.

i had a guinea pig.. Taking them to a class where people feed it led.. i dont know why they did that = bad! lol... but i had one and it was all cuddely untill it tinkled on my head..
and then the second one punctured my little brothers pinkie because i stuck my finger in the first one's mouth because i just had fruit and it will lick the frit stuffs off your finger, he tried it on the second one and it bit into his pinkie.... but still, good choice, the little tan ish ones are cool... but then the brown ones tend to die faster...