Yeah. I went back to grad school for my MS in Computational Biology while working full time for Dell as a development lead, and it was rough. Weirdly, though, I kind of miss it. Work paid the bills and school satisfied my desire for a challenge. I was only taking a couple of classes per semester, though, so the schedule didn't kill me.

If you get a job at the U, I think you can get discounted tuition. That may be a way to go.