Hello Jason, it all depends on the pixel density you are looking for. I can get 2-3 Giga-pixel images out of this one, though I usually shoot around 400-500mp.
Take a look at these home-made sites, and see if you are at that skill level: http://wiki.panotools.org/Heads#Self_made
If not, let me know how much you want to spend, and I'll try to point you in the right direction.
Yikes, that's an expensive pano-head. Can you recommend any lower-priced ones? Cool shots.