Here's another post in praise of the Feisol. I have the 3301, and I love it. I also have three Bogen/Manfrotto 'pods that have been reliable workhorses, but I love the lighter weight of the carbon fiber legs. I have a Bogen geared head (410, I think), a couple of pan/tilt heads (heavy, but bulletproof), and an Benro ball head that is just so-so. I've just bought a Manfrotto 268 ball head with QR from a fellow 'pugger and hope to use it with the 4x5. (Other cameras include a P67, and Mamiya C330.) Good luck.
One thing to keep in mind for your selection obviously is a sturdy tripod that will remain sturdy with the bellows fully extended. Also carry-on for air travel can be tricky if they measure the unextended length and hold you to it. A tripod bag from Domke covered by a jacket can usually work then place it in the overhead bin lengthwise. I use a Bogen 3036 with a 3047 head for most everything but for travel now I go with my Hasselblads and a Gitzo carbon fiber that is lighter and folds to acceptable carry on length.