Do you want stimulants of non-stimulants?
If you want stimulants, I would use something like
Hi Tech ECA Extreme it has ephedrine, caffeine, and aspirin, along with green tea and other good stuff that increases your basal metabolic rate (BMR) and helps you burn off fat quicker.
If you're looking for the non-supplement route, I would go with something like
SNS Lean Edge which doesn't have any stimulants, but can aid in your fat loss with diet and exercise and appetite reduction.
There's a special going on right now where you can get a bottle of Lipodrene (ECA) along with a free bottle of CLA
http://bit.ly/LipodreneCLA]High Tech Lipodrene with CLA
You can use code "starscream" for 10% off your order on any of that stuff.