Home Tourney Advice Needed

[Drac]

I'm running my first home tourney in a couple weeks and I'm looking for some tips from people that have run/played in some home tourneys. NLHE, hoping to get 15 - 25 players for a $30 buy in. Any advice on how many positions to pay out, best way to run the tables (play down to x number per table, then merge for final table, keep table numbers fairly even by moving players, etc.) and any other advice people have would be much appreciated.