Here are a couple I have played recently:

The PokerStars Turbo Takedown is now monthly on the last Sunday of each month and is a freeroll with a $1 Million prize pool - entry is 5000 FPPs with points satellites for those with less... 1st Prize = $100,000 with a lot of paying places.

-- Check out Poker Stars now.

Carbon Poker also do a decent points freeroll each month with a $50k prizepool. Just 5000 comp points to enter and these accumulate super-fast - I got a ticket playing recreationally in my first month at the 50c / $1 PLO mostly. Standard of play at Carbon is terrible (fishy / inexperienced)

-- Check out Carbon Poker for yourself (you can even use my bonus / coupon code SNGPLANET for 200% to $600 (standard bonus is currently only 100% to $500!)

Any other good ones... that is not 2000 players fighting over a $50 prize pool??!?

Cheers, Mark