If you are looking for a new hour long mix for your cardio work out, then you have to check out the new mix from FitPod. If you are interested in international electronica, you should check it out too. The mix features the Turkish band monoCream and it is exhilarating.
The beats per minute of each song increases just the way your heart rate should in a cardio work out. So if you're moving to the beat - chances are high that your heart rate will follow. Even if I am stuck at my desk I find the mix highly motivating.