You should check out Kessler Crane. I just picked one up about 3 weeks ago and I love it! Its only $400 for the 8 foot one as well. It's worth the money.
I have a Libec 37 head. To be honest, the quick release plate could be bigger. So, I haven't used the crane yet...but as far as the construction and design goes, its a great deal.
okay, sorry for the delay on this, had a couple of crazy gigs lately.
i am no longer selling the tripod head with this, since i sold it with a smaller tripod today. however, promax seems to be selling bogen 501's to replace this head, i would just recommend using the head you already have.
this is the kit i got (on recommendation from promax) http://www.broadcaststore.com/store/prod_detail.cfm?eq_id=433561
I DO NOT HAVE THE HEAD ANY LONGER.
to clarify, i am selling:
Tripod model #3033 (geared head)
cobracrane I with extension
5.6" tft lcd monitor (not sure of the brand) w/panasonic np1 & charger
case for tripod (bogen softcase, a little too big for the tripod)
condition is used, it looks used, dusty and some scratches, but functionally great.
I wired the crane internally for video to monitor.