My boyfriend's been wanting mice for quite a while now, so I'm planning to get them for him for his birthday. The idea is to buy the cage and other accesories (food, etc.) for him and then take him to the petstore to pick out which ones he wants. Now I just have to decide what type of cage. There's always the classic 10 gallon aquarium, but I was also looking at a couple of cages that are supposedly hamster/gerbil/mouse cages. They have wire bars that seem to be close enough together so the mice wouldn't escape, but they also have plastic tubes that run in different places. Has anyone had any experience with these? Good, bad, etc? I'm wondering if the mice would be able to go up a vertical tube made big enough for hamster. Any mice owners have any suggestions?