The nashbar and winwood CF forks are the same, made by
http://www.evo.com.tw/. I have a few miles on the nashbar fork, good so far. My fork has a minor cosmetic (i hope) flaw, typical of Nashbar rebadged merchandise, but it saved me over 100 bucks. Aprebic assembles the removable Al brake posts with red loctite, so its nearly impossible to remove them without boogering up the flats.
The nashbar steel forks are simply qbp/dimension/surly forks, all made in same taiwanese factory. The cheapest fork choice, some of these are really heavy (1400g). Watch out for the quality - they made so many with the bosses in wrong spot that they had low/no inventory for many months last year, and nashbar sells a lot of this messed-up stuff. I have read comments of several Surly LHT owners that had to return a frame because the rear brake bosses were f'd up.
Pace Cycles makes fine (pretty, strong, lightweight) CF forks that work for mtb/rd, depending on your A-C distance requirements. I hardly ever see them cheaper than this
http://aebike.com/page.cfm?PageID=30...and=558&type=T