I have a new iPod Nano which has started running my school/athletic/work life(I use iCal to track swim/running and weight practices, when classes are and when I work). I love the functions on my iPod, it's fantastic, and this morning I noticed the Nike + iPod thing...which seems pretty cool. I want to use this, but I JUST(as in on Sunday, lol) bought a new pair of $100 dollar running shoes and I really don't want to have to buy new ones just to use this. Is there an alternative for it? Like an ankle strap or something to hold the cesnor the program uses? If so, I'd really love to know. Thanks!