What limit to start at? (long post)

[Jon1000]

My poker background: I played every college game I could find and a few home games in the area that ranged from 40NL to 300NL. While I dabbled online and played live compulsively, I was not serious about systematically improving my game. Due to rich kids and Northern Virginians who can't play poker and generally soft games, I was happy, but I never kept a proper bank roll b/c A. I didn't really know what one would be B. I was a poor college student and winnings over 3 buy-ins would go towards booze and women C. the games were relatively [censored] and i figured if I had to i could always move down in live limits for a while.

This summer post-graduation was the first time I set aside money for just poker. I played exclusively live at the local casino, a club, and a few home games and did well enough at the 1-1-2 game and shots at the 2-3-5 game that I supported myself for a little while off of my winnings. I've taken the last month off from poker and am working now, but the majority of my roll is still sandwiched in between a couple of books on my shelf, hidden in the monopoly box with the play money, and most importantly, burning a frigging hole in the back of my head. I want to make the move to serious internet play, and am wondering what the hell limit I belong at. I'm most likely only a slightly above average player, but I did beat the pants off those live games. My understanding of multitabling, PT, PAHUD, sixth sense, and all this other junk is so limited I'd feel like I was doing myself a disservice just jumping in at the limit or even the limit below the one I'm currently rolled for. Should I start at 25NL and work my way up from scratch? From the stuff I've read on here, I'm grossly underqualified to jump in at 600NL. Where the hell do I belong?