Manfrotto 561BHDV Video Monopod with Fluid Head
Manfrotto seems to have come up with a great solution in the 561BHDV. This monopod has a video-quality fluid head, which interestingly only tilts up and down. Panning (turning left and right) is accomplished be swiveling the monopod column. The leg sits on a special pan-joint at the base, and the base has three feet for added stability. And the leg extends to 78 inches, which is about as high as you can go - for most people - and still be able to operate the camera effectively.
At $270, it's not cheap, but it's a really nicely built piece of equipment, and Manfrotto makes great gear.
Pan joint and base legs of 561BHDV
B & H: Manfrotto 561BHDV Video Monopod with Fluid Head $269.96 [it's listed on back order, but it's on backorder at Amazon and Adorama as well.]