you can get caged bike pedals at any bike store. but why? They're such old technology! you could go to MEC (Mountain Equippement Co-op) and get clipless pedals and shoes for around $100
I agree that clipless are the best option! Well worth it. Takes alittle getting used to but they're great. I am training on an old road bike on my indoor trainer with caged pedals and I much prefer the clipless....worth the money.