Fork chatter

Ever had fork chatter when braking? Figured out a way to fix it? I've found toe-in and pad material can usually fix it most of the time. But if you're still struggling with it, why not just return the damn fork (or bike)?

Check this out:
http://cgi.ebay.com/2007-TREK-XO-2-58cm-CYCLOCROSS-BIKE_W0QQitemZ15...

Since it won't be up there forever, here's the funny part: "All components are stock, but the original fork was warrantied by Trek because of a slight shudder, replaced with the same fork model."

You'd think Trek would just laugh.

Well, anyway, if you have super-secret techniques on eliminating chatter, or want to recommend a fork to get or avoid because of chatter, post it here.

I've found the Ritchey WCS and Easton EC90x both tend to have some, but it's mostly curable. I usually use the really grabby salmon pads though - and other pads have been more forgiving with chatter.