Stacker 3 w/ Ephedra. I've used it for a while and it's worked well for me. It helps supress your appetite, which is good for the late night cravings and also when you do eat meals, you will be full faster. Plus it speeds up your metabolism and also gives you the energy needed to workout.
http://www.myspace.com/firefighter78
^^ Me.
Do read up on Ephedra before you take this product or any Ephedra products, so you know what you are getting into.
My only disclaimer...don't mix with Red Bull...fucked me up.
And also...have lots of SEX...great calorie burner.