I completely understand... Got bit by the bowhunting bug several years ago, and ended up selling off all my deer rifles; I just knew in my heart of hearts that I would never find satisfaction in shooting a deer with a gun ever again.
As far as the Allegiance goes, I think many would concur that it's probably the ideal bowhunter's bow. I am strictly a bowhunter myself, and log an extreme amount of hours in the stand... I'll be shooting an Allegiance in '06. The moderate brace height combined with some of the fastest speeds being generated in the industry combine to make a forgiving, yet radically fast package -- something extremely rare in the archery industry. For example, Mathews unveiled their new bow today at the ATA show. It generates a claimed (notice the word "claimed" -- Mathews is notorious for not being able to make their speeds) 322 fps at a 29" draw length. BUT, that's with a 6" brace. The Allegiance is capable of generating those speeds AND giving you a full inch more brace height. Couple that with the modular cam system which allows you to switch between "smooth" and "fast" -- without the aid of a bow press -- and I feel they've got a winner.
To fully understand the merits of this bow though, you simply have to go shoot one. There'sa tremendous buzz about the internet concerning the Tribute, and rightfully so. But, to me, the Allegiance gives you a bit longer axle-to-axle platform, while still remaining highly manueverable, and is ALMOST as dead in the hands as the Trib. The added 10 or so fps though translates into more room for error in yardage estimation, as well as kinetic energy to drive that broadhead through a big bruiser's shoulder bone on a too-forward hit.
As far as technical help, there's TONS available on the internet, and most bow shops should have someone who is familiar with the binary system.
Welcome to our little piece of the world... and welcome to bowhunting in general!