where are the good $10/20 games?

I have to much bankroll to keep playing 5/10, but 10/20 is the only difficult level on party. I have enough to get away with 15/30, but I want to play $10/20 steadily for a few weeks so I can get used to the varience and swings before I move to 15/30. I like moving up levels slowly, i'm not as concerned about higher income as I am about not going bust or having a huge downswing. So...
What site has the softest 10/20 limit games?