Guinea pigs are great little animals, very friendly and they really enjoy company. I let mine run around the floor for exercise and my dog showed no interest in her at all. Infact, the guinea pig used to eat the dog's food and get in his bed, the dog used to get out. You will obviously need to be very careful with your dog at first.

Don't cost much to keep apart from initial setup. I used to give my guinea pig hay to nest in but she kept on getting mange so I got her a little wooden house which she loves. I clean the cage out every 4 days.

They do enjoy company. My guinea pig has always been indoors, in the living room infact. She loves just sitting on my lap watching tv. She is very tame. I have had rabbits, gerbils, hamsters and chinchillas in the past. The chinchillas were as friendly as the guinea pig but both chinchillas suffered health problems.

Not sure you would want to keep a guinea pig in your bedroom. They are very vocal during the night and scurry about quite a bit.

Good luck, I am sure you won't regret it. I would definitely get another, I cannot think of a downside with these little animals.

Adam