Pima's advice is appropriate for civilian dorms, but be aware that the process for cadet dorms and R-day for new cadets is very different than for regular freshmen. New cadets will get a manual soon that outlines the move-in process, when to report, what to bring, what will be issued, etc. I'll give some pointers below based on our experience, but the New Cadet Week manual for the incoming class is your best resource for info on this year's move-in.
Buy or make the hutch, definitely. They will deliver the hutches on R-day, but they had to change the pick-up spot at the last minute due to construction. Just look for the big panel truck...
I'd suggest that new cadets not buy linens through the school. Cadets are issued wool VTCC blankets & any comforters have to be stowed for inspections. Cadet bunks use regular, twin sheets (they are not twin XL like the civilian dorms) and new cadets have their choice of color: white, white or white!
One set of sheets and an extra pillowcase should be sufficient; cadets tend to sleep on top of their made bunks so they don't have to remake them for inspection and only the pillowcase really gets used. Send your cadet with a light sleeping bag, polar fleece throw, etc. that they can easily stow in the mornings for inspection. Having two sets of white towels helps, that way cadets have a clean set for inspection.
Cadets bunks may not be lofted and carpets are forbidden. New Cadets are not permitted to have a stereo, TV or posters in their rooms. I don't believe new cadets are allowed to have extra furniture in their rooms, such as futons, but that's something incoming cadets should check before bringing.
The Corps suggests that parents go with the Mega flex plan because cadets tend to run out of money before the end of the semester. Because they are up early in the mornings cadets tend to eat breakfast more than civilian students, so their advice was correct in our experience. We had to add money to our son's account even with the mega plan and he's not a huge eater.
New Cadet move-in procedures are very different than for other freshmen. Note that parents get to do the moving in while the cadets are getting haircuts and doing all the other R-day necessities. There weren't any dollies available last year, so bring one if you think you'll need it. Bear in mind that cadets don't move in with much, so our experience was that move-in took about two trips to the dorm from the car.
We found that move-in was actually a very simple, very organized process. Since new cadets are moving in a week early campus is a lot less busy. We arrived early, got things in before the day really warmed up and were able to help our son get settled in before the 'fun' began at 3:30.