I've been riding a single speed conversion for a few years now and am ready to make the committment to a track end frame. I like the idea of sliding dropouts complete with disc tabs so I don't have to adjust the brake everytime I adjust the chain tension. I would like a nice clean frame, disc only, but, actually, no disc tabs either. Because, well, I want the disc tabs to be on the sliding drop out. So - I'm looking for MTB frame with track ends, no brake bosses, no disc tabs. Just fast clean lines. Anyone know where to look? Anyone have a favorite frame? Voodoo? Fetish? On-One? Other???