Pacific Poker is my favorite place to play. I like the sit and go tourneys and I especially like to play in the 20 man $33 sit and go. First place pays $300, and it pays the top 5 finishers.
I know the software is not up to speed, but it is not the worst that is outthere. Never play NL in a ring game, if you make a big bet, even if no one calls they cut the bet. Totaly unfair, but they refuse to fix it.
I like the multi-table tournaments too. I play in the $30k gauranteed as often as possible, It is held nightly.
I won the 6K gauranteed once, for a sweet reward of $1800.