im getting a new 330ci, gonna order asap. to SMG or not to SMG

used .....that is the question. with the smg, is there a program or somthing where u can rev the engine and then go into first, like dumping the clutch? if so, how? what im planing to get is a mystic blue with black interior, sprt pkg, xenons, and nav. the msrp for that wiht manual is about 41,360. about how much could i get off. and last question......has any one bought a car from SOUTH BAY BMW? if so....any person u would recomend...... ANY responses would be awsome.