You'll need to save some pennies for that Benchmade Killian Design Tomahawk:http://www.benchmade.com/products/172#.UI_afcXA9vkIt isn't cheap, but it is available.
I've read so many good things about Benchmades, and I've handled a couple too, because I was seriously thinking about getting a Mini-Grip. I was shocked though, that they only seem to use hollow grinds on all their knives... are there some models that aren't hollow ground? Perhaps I'm just being picky, but after experiencing the joy that is the performance and strength of the full flat ground Spydercos, I have no desire to ever buy another hollow ground blade. While sometimes you don't get a choice, like with the built in blades on Leathermans, I've seen/experienced too many rolled edges, chips, and other small misfortunes to ever use a hollow ground blade again if I don't have to.
Thanks for the info guys. I do know a bit about blade physics but by no means am I any expert. If Benchmade made a flat ground sheepsfoot style blade with a plain edge, I'd be much more amenable to buying one. I've been lusting for a Rock Lobster for a couple of years now; that's as close as I've ever seen to the perfect utility folder. I just wish I could afford one.