motor mounts tranny mounts

so has anyone had to replace your motor mounts? I have to replace my front one that is actually attatched to the tranny, The dealer wanted 250 for the one and rsmracing wants 150 + the 75 core so i have to send in the old mount and I get store credit. Which isn't a bad thing I might buy the slotted rotors or something. im trying to get them to make a larger underdrive pully.