I am a pretty new poker player, and want to know wat the difference between online and real (b&m) tournaments. I normally do pretty good in the internet tournaments I play on Pokerroom.com, but when I get into the live stuff, i seem to freeze and forget what I went in to do. I know part of this is just sheer experience, but how much will internet games help with the live experience?

and also, is pokerroom less competitive to some of the other free sites?