1) Caution: At PlanetLuck, I was chatting with the customer service rep, and their $100 offer expires May 31. I fully expect that they'll renew it for another month (the rep accidentally said so), but I'll need to hit the $1600 by then. Shouldn't be a problem, but if I were trying this in a couple days, I'd be out of luck.
2) Referrals: If you're trying to do this, too, let me know ahead of time. Maybe I can leech a referral bonus out of one of the casinos.