I'm not a professional or anything but it sounds like I had a similar physique to you but I have lost weight over the last few months.
I'd recommend interval training for 20 minutes, with a 10minute warm up beforehand. During the interval training run as fast as you can for 30seconds then break for 1 minute and repeat. Personally I like to use the cross trainer, but some use the treadmill or rower. This will improve your stamina, increase heart rate and help you burn fat faster than if you were just doing normal cardio.
This is just the advice my personal trainer gave to me and it seems to be working very well. Of course that is combined with having a healthy balanced diet.
When it comes to weights I just like to mess about on the different machines lol. I normally do 3 sets of 10-13 reps.
Hope that very simplistic advice helps at least a bit.