Do a search, acehistr8 has posted several links to weekly tournaments in Vegas, as for freezeouts, that means once you bust out of the game that is it for you, no re-buys. Freerolls are games with no entry fee and often offer a small prize to get you to play, PokerStars has freerolls everyday in which the top 9 finishers get a free seat in money game at the end of the week, these games ofter draw the max of 5000 players and in some cases they allow more people in them. I played in one and finished 2nd, it took almost 6 hours, really a waste of time in my opinion.
Penguinfan