I have a Pure with the Pure fork. I like the fork, but it is a little longer then some other forks. It seems to work well with the Pure frame, but the Pure frame was designed to be used with this fork. I think the length is about 420mm.
elan the koxx is designred around a 190mm disc, and even at cost I don't want to pay that much as its not worth it. If only that echo wasn't 420mm...it looks great and everything, but its so damn tall. The echo urban looks gay like those cannondale forks, I'll probably end up with the worst looking fork of all - a "superlight" in 400mm...suuuuuuuuper cheap.
I just bought a pure fork. I'm really impressed with the quality, really nice welds, looks beefy, plus i like the look of a racked(sp) fork. Some people say it's flexy...but it depends what you previously rode aswell. Some people like the flex, for certain moves.