tenbob is right on the money thing. work it up to a couple grand first.
as for better players at higher levels, if you think they are you will play different. the amount of money someone has, is no measure of there compitence as a poker player. I make 6 figs, have no debt, and loads of spare cash and well I'm a crappy poker player, really don't care about the day to day grind. I just get a kick out of the big scores.
But my buisness is my buisness and I take it seriously, have a plan, and manage it ruthlessly. I recommend, if you are serious about this, get organized. read a lot, not just poker books
either. study psycology and learn how to identify your faults to fix them and others faults to EXPLOIT them!
I have been reserching the anonimity aspect of online poker. after reading numerous phsycology of poker type books, I found limited info that was based on science, it was mainly guess work. I have found some articles on driving/road rage that resemble what I see on the tables. Also I am currently reading an online book that is about phsycology that has alot about group mentality associated with anonimity such as riots that is interesting. It resembles alot of the players that seem to start playing the same at a table. Well links to one good article and this book are attached. In the article they block traffic as a light turns green, with different vehicles, one of which is a pickup with a rifle in a gun rack. Pretty funny read! try and relate it to poker it may help.