Chris DeKerf at one time welded frames for Rocky Mountain. If you ever see an old Altitude, you can see very similar construction techniques to the current DeKerf frames. And he seems to be pretty successful because now he's branched out to make an aluminum frame and an FS frame.
[edit] after a long absence sending all his frames off to Europe and doing wet-booth work for Rocky, DeKerf is back! rejoice and revel in hand-built canadian awesomeness!

Team SL- This bike would confuse the heck out of a mountain bike magazine editor. "A long travel fork? It must be a freeride hardtail... But where's the riser bar? It can't be a race bike with that fork on it..." Luckily, we can ride anything we want and ignore the classifications some people seem to need to use.
Is it just me, or does that color say "standard Army issue mountainbike?"
Generation - How do you get yourself a handbuilt DeKerf, and still be able to afford to eat something other than Ramen noodles? You get the Generation, more or less the same frame, but cheaper components.
Team ST - This is the Team ST with Ti chainstays. It's really too bad that Dekerf seems to favour Rock Shox, because this bike with a Marzocchi would rule.
Team ST - Well I'm really sorry to say this, because I'm sure you spent a lot on that custom flame job, but I don't think I've ever seen a good flame job on a bike. But maybe it's that butt-ugly Shimano crankset and weak Rock Shox fork.