I don't think a fan is necessary, just turn the AC down.
The lockers are fairly large. I bought a locker shelf on clearance from Target which has been handy. My laptop fits just fine (17 inch)
for the kitchen - if you do any sort of cooking, get a knife set. there is one single knife (other than butter) so if you're making a salad and chicken, you have to wash so you don't cross-contaminate. It's a royal pain in the tush. There also wasn't a pasta stirrer thingie - I had one in the knife set that I brought from home.