I play the free rolls at Absolute Poker. Be ready to register if you want in on the 5:00 pm est 1k freeroll. It fills up quickly.
The place for good practice play is Poker Stars in the sit & go section.
there are new 1 2 3 4 and 5 table holdems starting every minute it seems
and if you are quick you can get into an omaha hi/lo single table.
I know there are more chips to be made at the regular tables, but fighting the all in crowd gets old.
Where do YOU like to sit & go??