Here is my advice. Drop $50 to $100 into an account on what ever poker room you like. I would advise you to use FTP because they have the largest selection of games. I would play something around a $3.30 KO. You can also try a $5.50 MTT. Full Tilt offers those types of tournaments all the time. I play extremely tight in most tournaments I play in. I've found that I cash alot, but not always the final table. Remember that as your bankroll builds you can play a higher buy in game and experience more profit.

On the difficulty of online vs live it a whole lot harder online than live. People will make plays online they wouldn't make live because they don't have to face the player when they suckout. It's easy to ignore a player(s) online and don't have to listen the the whole table give you crap for the massive suck out you just made. That and the number of different players you can encounter online makes the game harder. They usually say that online levels are 3x as hard as their live version.