Dorm-room Fish

I'm heading off to college in the fall, leaving my pets at home. However, I recently learned that my dorm allows pet fish. I am the kind of person who needs something to take care of, so this appealed to me.
   
Now, I have owned fish before. I had a ten gallon aquarium for a number of years and learned the basics of caring for fish. I wouldn't be bringing anything near as big as a ten-gallon tank to school. Think 5-gallon max. -- fish bowl size min. and more of a low maintenance thing.
   
I'm looking for suggestions on the type and number of freshwater fish I should get. Tank size suggestions would be great too.
   
Also, would it be crazy to expect fish to survive a three-hour drive from my home to college? Should I try to find a pet store there to buy them?
   
Thanks!

Best fish: Goldfish, guppies, or tetras, none of which need a heater to be happy.
   
Buy the fish locally. It's easier.
   

i thinks goldfishs is easiest to tke care of because they is a colwater fish and dont need a heeter. also not as sensitive to water qality as alot of tropikal fishs. as for a tank buying a plastik container is what i do because its much much less expensive, you can get a very large one for cheap, also lighter to cleen. also goldfishs is surface breathers so one with a large surface area is much better than a bole shape. and i haved find that getting 2 they is alot more active than 1. and buy these fishs very small cause they can grow.