The Performance/nashbar forks come and go in their sale flyers, and are sometimes on ebay used. I'd hold out, if on a budget, for one of those.

The Ritchey fork is definitely a better fork, and seems has no problem selling at $200. I got a shop to discount one to me for $125 and put it on a friend's Kestrel (so I could have the EMS Pro), and once I rode the Kestrel, I wondered if I shouldn't have just bought the Ritchey for myself!