That's actually my exact plan. I'll turn this into an ultra-heavy training cycle over time (needed a bike ASAP cuz the old truck just won't cut it anymore). All that really involves for my simple tastes is new cranks w/chain rings (for some top end, because even on my commute, not pushing too hard, I am on the 3rd ring in top gear), some killer brake pads (that hold up to wet weather just a tad better), and a non-split bar (maybe, still on the fence here).
Until then, it gets me to school/work, and gets me there for (mostly) free!