Florida laws seem awfully restrictive. You might just be better off finding a way to advertise a penny-ante game (read: legal) to build up a group of people who are interested in bigger games that way.

Advertising a bigger game with this "supplementary prize" probably runs afoul of the law. Just depends how likely you think any law enforcement would come down on you for these moderately-sized games. Probably pretty unlikely, but it's up to you.

Have you looked at www.homepokergames.com?