My 2006 Giant Bowery rear wheel needed truing bad (my u-lock got caught up in it). Both wheels had alot of foul weather mileage on them (my winter / rain commuter for the past 5 years). Rather than spend the money on a truing, I looked into a lighter wheelset that wouldn't break the bank (after all, the entire bike only cost me $400 brand new). Went with these:
http://www.wabicycles.com/GXwheels.html
Have been quite happy with them so far. Definitely make the bike lighter / better accelerating. Match the bike better, IMO, too, than the OEM wheels (I have the polished Bowery).