My son attends the local university and two years ago, I bought him a MB Air 11". The only time it is plugged in is when he needs to charge it. The new MacBook with retina screen will suit you just fine because the primary needs of a collage student is light weight and small size. Did I mention light weight and small size?
To prove this, I offered to trade him my MacBook Pro Retina which I handed to him as I made the offer. As soon as it was in his grasp, he shoved it back at me with a look of distain due to the amazing difference in weight, size and thickness. The new MacBook is better than the Air because it is lighter, thinner and has a retina screen. Retina screens are a game-changer improvement.
During Apple's keynote introducing the new MacBook, a passing explanation was made about connectively - modern version, that is. To view content a TV, just use AirPlay Display to an Apple TV. Get one of the newest AirPort Extreme Base Stations and attach a USB drive or powered hub. WiFI ac is about as fast transferring over the ancient FireWire. No SD card slot? Well, you don't need that either. Most cameras today have WiFI built-in or Bluetooth. And if your camera is also your iPhone, there is the Photo App and the iCloud for that. Don't need no stinking wires!
Of course as WiseJD replied, if you are a heavy graphics user or even a super video editor, MacBook may not work so well if it is your only machine. If that is case, as is with my son, he also has an iMac back in his room for his video editing and such (but actually uses the Air for most stuff, there as well.) The Air - or as his next machine will be, the new MacBook, is for taking between classes during the day. In fact, sometimes he just uses his iPad with a bluetooth keyboard case around campus.