I have the Dragon + (KT266A). It's a sweet board. Aside from some initial lockups (which a promptly-released BIOS update fixed) I have been rock-solid stable and FAAAAAAAAAAST with my Athlon XP 1700+. I have not overclocked it, as right now I'm interested in Stability over an extra FPS or two. Built-in NIC works great. Promise RAID controller works perfectly as an extra IDE controller, the board layout was great for my Antec 1030B case, and the four extra USB headers have come in handy. I haven't used the onboard sound (I have a GameTheatre XP), but from all reports it works great.
I'm very pleased so far... in fact, I'm going to go so far as to say that this has probably been the best mobo/cpu upgrade I've ever done.
l2c