Loose something in gearbox??please help

thanks a lot guys...i was going to replace it anyways....okay, now the question is of what clutch to go with? act or centerforce? and what level...im pretty hard on shifting and the clutch, so i dunno. Also, i would probably get one off ebay cuz they're a lot cheaper there. Um, how much would a clutch install usually run? thanks a lot, later