I just finished a week long search for the perfect tripod. My goal was a reasonably priced, lightweight, but very study, tripod. It also had to have a good head with strong support even in the tilt position.
My final selection was the Davis & Sanford CarbonLite X10 tripod. While I did look at one carefully in a local store, the best price I found ($187) was at Cameta Camera...
http://www.amazon.com/Davis-Sanford-CarbonLite-3-Section-Olympus/dp/B000KGMW...368562&sr=8-11
This tripod features carbon fiber legs, magnesium canopy & leg hardware, and aluminum-magnesium alloy head. The large quick release mounting plate on the head should provide solid support in all positions. The tripod weighs 5.4 lbs. The load rating for the legs is 14 lbs, with 9 lbs for the head, which should be enough to provide reasonable support for the K10D with extras (grip, larger lens, flash, etc).
I placed an order for this tripod a couple of days ago and it has shipped. It will take about a week to arrive here in Germany.
By the way, if all this sounds like a sales pitch, do remember that I've been reading exactly that over and over for the past week. I now know more about tripods than I truly care to know.
stewart