Money leagues worth considering?

[themather]

I play in several money leagues with friends, and am considering this year taking a stab at one of the bigger jackpot fanatasy baseball services out there. I'm sure a lot of it can come down to luck in these leagues, but I'm thinking it's at least worth a shot. But quite frankly, I have no idea which are any good and which are a big pile of crud.

Any recommendations from anybody out there? I'm open to various formats and entry fees, and would love to know what you guys think.

Thanks.