Dallascannon,
I've quickly scanned thru this thread and want to point out an important facet that nobody has mentioned yet: Bike Fit. This is the #1 thing in getting something that works well for you. I am correct in that you are bartering for a "bike trade"? This means that your bike options are dependent on the other guy being the same size as you. Bike fit is one of the biggest errors someone can make when they are new to this.
If you have established proper bike fit then don't over fixate too much on the bike details. Buy as much bike as you can comfortably afford to spend. The just get out and ride! Ride! Ride! This is the biggest way for you to develop opinions and taste. This will hold true for EVERYTHING people have already mentioned: tires, saddles, brakes, frame material, suspension types, 29er-26er, TIRE LEVERS. Everyone has what they feel works best for them and this process is honed by experience. You cannot short-cut experience. So just get (the correct sized) a bike and ride. If you fall in love with it then in 5 yrs you'll probably have owned 5 different bikes, ridden 20 different tires, gone thru 3 saddles and broken 2 different kinds of tire levers.
Cheers,
CJB