Help me decide on a habitat/pets

[Zelg]

I'm not necessarily a turtle kind of guy but every time I go to petco I always see their turtles and enjoy watching them swim around. They're odd little creatures. That said, they're definitely third in line as far as mixing goes. If I have a land/water setup I'll definitely want frogs and I'd really like some fish in the water. So if turtles are a problem then I might have to do without them and until I get a proper turtle only setup.

I guess I should start looking at what animals can live together peacefully and still have enough room to have their territory.