I have 11 guinea pigs so I can help with any questions you have(assuming I know the answer of coarse) ok check out www.cavycages.com its one of the best piggie sites on the web, and show you how to make cheap easy cages that are the proper size for a guinea pig it also give lots of great info on the care of piggies yes a bunny and a guinea pig can have supervised playtimes together, assuming the bunny is either female or neutered male, intact males tend to harrass guinea pigs. TM is right bunny and guinea pigs cannot be fed the same thing piggies are just like people in the fact that they cannot produce there own vit. C, so they need guinea pig pellets(NOT a seed or fiesta mix, as these can cause a piggie to choke, plus are fattning) they need alfelfa hey until 6 month sthen timothy hey or some other grass hey. plus they need LOTS of dark leafy greens from day one. just like a bunny they do need there claws clipped regularly, however most pigs nails are small enugh to be clipped with human nail clippers without harm. if ya have anymore questions just ask