ASF's are definitely the one for you! I've only had ASF's for a month (from the awesomest ASF breeder in the USA - Mike Cavanaugh) and I can tell you for a FACT that they can definitely be raised inside the house especially if you sprinkle a little Sweet PDZ (see post on general Feeder section) underneath the substrate. I have my rats in the office. Right now, I have my trio on the living room coffee table because they just had babies and I'm just sooo excited I have to look at them all day long! And, I've only cleaned their tubs twice since I've had them. I'm cleaning again on Saturday and my guests yesterday didn't even notice I have rats on the coffee table. The advantage of them being inside the house is it is temperature and pest controlled. I would go crazy if they would get fleas and such!
The ones I got from Mike don't bite. The trio I got are pets and my kids are constantly petting them.