My first real job was and still is being a Resident Assistant here at Northern Arizona. I'm not including seasonal work at Mervyn's or temping at ON Semiconductor since they didn't last nearly as long and weren't nearly as interesting. Granted, it doesn't pay any real money, but room and board's pretty sweet. It's a 24/7 job though, and the only way not to be at work is to go out of town for the weekend. However, it's a barrel-full-of-monkeys of fun.
I think Residence Life is the best place to go after FIRST.