Is there a mortgage that will be 30 year fixed with interest only for 5 years?

If so, is it possible to pay more than the interest every month so I don't miss out on paying the principal? Are there usually fees associated with this? I want to upgrade my place, but can't quite afford a 30 year fixed on the new place, but I can afford interest only + plus a couple hundred extra which would make the payment close to what I am paying now. Is this even possible?