Jdub,
Don't worry about asking too many questions, that's what this board is for. You should read the BNT rules here: www.bass-n-tubes.com/rules.html
You must have an approved PFD and livewell. Those are the two things without which you will not be allowed to fish. As far as cost goes, I believe that the entry fee is $20 with a $5 big fish option for each day for a total of $30. There will also be a camping fee which Lake will announce later. Last year Beacon Harbor charged a $5 launch fee as well but I'm not sure about this year.

Doug