Getting a new set of wheels with fixed gear receptacle(s) is probably a better idea. For one, you are going to feel safer thus more enjoyable. And, if so you choose, you can keep that wheel set for a new fixed gear bike. This way, you don't need to ruin your single-speed wheels for later use. Some people go back to single speed and a lot of people like having both FG / SS as options, anyway. ... Pay upfront, work less, worry less, more fun. Good for me.