We're going to kick the raffles to the next level this week by running two raffles at once.  A 7-day raffle and a 14-day raffle.  7-day raffles are for pets and helms while the 14-day raffles are for mounts.  Mounts are a bit pricey, so I've also kicked up the minimum participation requirement.  Also, since it's a 14-day raffle, you'll be able to put in a max of 35 tickets, thereby increasing your odds of winning a prize.
We're hoping to build the interest high enough to support a 30-day raffle... which will be for cool gamer hardware such as video cards, mechanical keyboards and what not.  
Good luck!