The space bags are nice but keep in mind that when you unpack the items will become full size again. Dorm rooms are not very big.
PACK LIGHT, and remember there are stores near the college. We did the SW move to the opposite coast. Four suitcases, a computer bag, an instrument case, and two backpacks. I put this on another thread...I'd you fly and rent a car, make sure the trunk opening is large enough that your bags will fit through. Tiny cars won't work.
Order anything bulky for pick up at Bed Bat and Beyond near the college.
Less is more for this move.
The BEST part of having a kid on the opposite coast for college was that she did NOT bring stuff home for the summer and plop it in our living room. She stored most items in her college town and only brought home small, lightweight summer clothes, her computer, and those instrument!