Dude....
Your gym no doubt has a room full of "spin" bikes....get your ipod loaded with music and bring some bottles of water. Get it on, peddle some in the seat, some while out of the saddle. Peddle some fast at low resistance, some at high resistance (peddling through wet concrete they call it). Do this for at least an hour. Better yet, take a class.....you may be shocked at how addicting it is, and I'm not just talking about watching all the woman puming away in their lycra shorts
And don't forget that rowing machine....it'll burn some calories but also work to make that upper-body get developed. Few people hit upper-body for cardio, most the time the body freaks when you ask the upper-body to do medium or low intensity cardio for more then 3 minutes, it's just used to quick jaunts of heavy weights n' stuff.
Does your gym have a pool? That's good stuff too!!! Come on man, mix it up and melt that fat!!!!
What I've found is many of these guys who appear very musclar actually don't have large muscles, instead they have little fat on their bodies and that highlights & outlines their muscles!
I saw this nutritionist and in his office was a pic of him all buff...his arms looked enormous!!!! I then looked at his arms and they looked as small as mine (3 years ago) and I asked him what happened. He just told me he goes on a cut, gets down to like 8% and bam; HUGE MUSCLES.
Remember, the real reason you workout with your muscles it mostly to tell your body HEY, I'M USING THESE THINGS....SO DON'T GO STRIPPING THE LEAN MUSCLE TISSUE OFF AS YOU PERCEIVE WE'RE STARVING AND LOSING WEIGHT. That's right; we work weights to keep a toll on our muscles and prevent our bodies from shedding the unneccesary muscle while we diet. If you don't work weights, the body dumps muscle pretty quick. Notice how those Atkins dieters look like they've been starved? No muscle tone, wimpy!!!
Of course, the side-benefits of working muscle is larger muscles, increased metabolism and other stuff....but mostly we're trying to keep our muscle while we diet.
This forum is big on working muscle, cause it's macho. They don't push cardio...but that's cause it's not macho and most trainers can't make money training people on an elliptical machine. Cardio melts fat, simple as that. Mix it up, get it in.
Does your gym have a spin bike room? Does it have a pool? Does it have a rowing machine or some other form of cardio upper body?