yeah!  The revolution will not be televised.  You can come watch American Gladiatiors with me.  I have a big screen TV at my "office", which is one of the few places I stare at that damned box. 

Having workout clothes and snacks always on deck helps me too.  Also, as a personal trainer, I highly recommend people who desire to get in superior shape to look into becoming a fitness professional.  Teaching exercise all day will keep the body tip top.  On the rare ocassion that I "go out" at night I stay drinking water, otherwise the harmful effects of alcohol kind of curb the positive aerobic effects of dancing.  Whatever you do keep it fun.  Always incorporate new exercises into the workout, and try new activities to continually stimulate the body.  I am taking a spring board diving class at community college.  haha.  It is so fun!  Marital arts is also a great way to push yourself, and as Toby said, the group activity keeps everyone accountable.  Buy an iPod, a bicycle, rollerblades, rockclimbing shoes and other sports specific gear.  You will feel obligated to get your money's worth.  Celebrate your ability to move.