Go with a laptop. My son rarely brings his to class but ALWAYS brings it home on breaks. If you want bigger displays, regular keyboard, you can get a docking station.
The biggest issue with laptops is potential theft. Locks are a good idea but we found another product to help deter theft. It's a permanent label (pretty scary looking) and it registers your computer, a bit expensive but worth it IMO. Some universities require all students to use these labels. Check them out here:
http://www.stoptheft.com/site/produc...rity_plate.php