Everybody seemed to like last month's prize, so this month's will be similar. It will be a $50 Gift Certificate to JC Whitney, which is a HUGE online auto store. Pretty much everything you can think of they got.
We also have some coupons for them, like $30 off orders of $200+ (check out our auto coupons page.)
The monthly prize, as usual, is awarded to one of the top-most active members in the forums for the month.