What are those that you guys have used, and why do they either A: suck, or B: kick ass?
Note: I'm currently using a Ravelli AVT tripod (the 67" one, not the supported 75" one) - which is decent for lighter rigs, so it's okay for the HDSLR video I'm usually doing, but I'd really like something a little more smooth. That, and like I said, a good head for general photography is definitely needed.