Bigcountry73,
I spend a lot of time doing the same sort of thing, and I prefer to carry one large fixed blade and a small folder for delicate work. For a large blade, I have been very pleased with my Ka-Bar next generation fighting/utility knife. I'm sure some here would disagree, but I find it is the perfect combination for my needs. The blade is thinner than most other "tactical" knives (0.168" vs. 0.25" for the SOG SEAL 2000) and thus it is not as heavy or as strong as those others. However I find the thinner edge geometry cuts and slices very well for such things as preparing meals, cutting cloth, rope, packages, etc. It is also easy to resharpen. The next-generation knife is 440A stainless, epoxy coated (and the coating is darn durable), so it is virtually maintainence free - also this "softer" steel (ROC 55-57) allows them to get away with having a thinner edge that is tough enough to withstand chopping without damage, distortion, chipping, etc.
You CANdo light prying, digging, etc. with the Ka-Bar, but don't expect it to be as strong as the SEAL, BK-7 or Busse. AS long as you respect its limitations, I've no problems with the blade what-so-ever. I also don't mind the lighter weight of the Ka-Bar when carrying a fully loaded pack! I do a lot of nature photography, thus I typically have a bunch of extra camera gear when I go.
Egonomically, the Ka-Bar is about the best knife I have. The handle fits my hand perfectly (personally, I don't like the grip on the SOG SEAL - feels "dead" in my hand - I don't know how else to describe it. Similary I'm not that fond of the Fallkniven A1 survival knife grip, especially when wet). I also like the balance of the Ka-Bar better than most other field knives. Others are typically balanced with heavier blades which makes them great for chopping, but gives less control for the delicate stuff.
Finally, the kydex sheath on the Ka-Bar is excellent. (My one complaint about the Buck Nighthawk, which is an otherwise great knife, is that their nylon sheath stinks!)
The smaller knife I typically carry in my pack varies. Right now I have a Gerber Air-Ranger II, partially serrated (I prefer the plain edge on my Ka-Bar).
I would reccomend finding a dealer somewhere that you can handle the different knives before you buy. Personal preferance can make a big difference!
Hope this helps!
Dan