Going to start working out tomorrow and in general losing weight as well at a nearby gym. I've read all the threads here and worked out in the past so I have a routine, but I really need some new music to workout to. Preferably something really energetic, but genres could be techno, rock, whatever has a good beat and is good to workout to. Bonus if it's available to sample (and download) off the iTunes music store. Suggestions welcome. 