Supplements

I'm starting to get back into the gym. I could afford to drop some weight for sure, but I'm also looking to gain more muscle. I'm wondering what supplements would work best with my goal. I'm want to drop weight, so I'm on a cardio program which includes lots of running. I want to gain muscle, so I'm hitting the weights again. Do I stick to just protein, or what else can help with my goal? I don't want to swell, just want lose weight and gain muscle. I can elaborate further, just ask. Thanks fellas.