I would invest some $$ in some good poker books before I put real money on the table.
The play money tables are more for you to get comfortable with the poker site's interface and rate of play etc. You can't compare winning money there to winning money in a live game because people play different when its real money on the table.
Remember at the lower limits, especially online, cards rule. Forget about bluffing because there's always 2 or 3 idiots who will call you down when it only costs a couple of dollars to do it.
That's my
