C&C cages for guinea pigs?

Ok right now i have one guinea pig who is pregnant and i REALLY want to keep one baby. But the cage i have came from a pet store and i don't think its big enough for two guinea pigs. Everyone is telling me to get a C&C cage.. but i don't have enough room in my room for a gigantic cage like that! So could some one send me a link to a cage that is roomy but not really wide(maybe taller) that could fit 2 to 3 pigs. and btw it can b wide not just REALLY HUGE!!