I bought a Fuji Touring in April of 2006, and I am riding with the stock wheels. In the past two months, I have been busting spokes regularly, so I thought maybe my rim was bent or maybe I weakened some of the spokes when the others busted. I also noticed that the outside walls on my rims have started going concave. (Not sure what the term is for that.)

I'm thinking of just buying a new wheel. Does it make sense to get another type of wheel? Are there stronger wheels that can handle more abuse? I've only had the bike five months, and I don't want to replace wheels twice a year. Has anyone else had problems like this before?