Firstly, only a change in your diet will get you to lose that stomach, gear or no gear. Once you understand this, it becomes easier...
For very rapid (14 days) fat loss, with minimal muscle loss, check out the Metabolic Diet. There should be some details on t-nation.com, but you may have to find the book. When I first read it, I said "No-one can follow this and survive", but hey, it works. There is also the velocity diet (28 days), which is do-able. Low carb works well in the 28day to 36 day window. This can all be done naturally, and without any supplements.
Once you have decided on a diet, and are committed to it, you can then decide to either take the gear (winny, equipoise, masteron,t3/t4, dnp) either alongside the diet, or after the diet. DNP does not go with low carb or metabolic diets. T3/T4 go with anything. You should also look into Glucophage/metformin. For may people, it will help you lose weight just as fast as t3 and the gang - again, depending on your diet. Glucophage works simply by improving your insulin resistance.
Also, there is this
Bodybuilding.com - Jonathan Deprospo - Militant Fat Loss Tricks: Legal And Illegal Methods. and number of other similar articles on bodybuilding.com. Don't forget to read Big Cat's steroid profiles whilst you are there. It gives insight on which chemicals to use for certain purposes.
Ultimately, most gear you try will work, provided your diet is in check. Just stay away from the beer diet
