Ive been playing online poker (Empire Poker) for a few months now. I stick solely to the single table tournaments (10+1, 20+2, 30+3) and occassionally the $1000 - $25000 prize multi-table tournaments.
Online poker has pretty much become a second job for me; I'm waiting tables about 30 hours a week before I head back to school in the spring. I'll probably make about as much money in both areas before January comes. Be careful though, never have I encountered anything so addicting.