Best thing to do eventually is to learn to build your own wheels. Once learned, it's very easy to lace up and true wheels. I've found my wheels to stay truer much longer than most 'custom built' wheels I've purchased in the past. Besides I've saved hundreds of dollars. I'm currently building another fixie using a Bianchi track frame and just finished building the wheelset using new Suzue hubs (the cheap $49 set), new spokes ($25), and old Mavic rims (free).

George "no coasting allowed" Leakos