haha most of the vids you find are wrong, I can show you wrong technique.

there is one vid by nuttin fancy on you tube that shows the wrong way of doing it.
http://www.youtube.com/watch?v=G-M78KIy19E&feature=user
For one he's using a splitting axe to buck.
For another, the notch is too narrow.
For another, in a survival situation, I can't see chopping that big a piece of wood.
hannibal lecter spyderco:
OK, you shined some light on things.
First off, the "big" Gerber/Fiskars axe is what, 26"? That's not a full-size axe. That's what's called a cruiser axe, 3/4 axe, boy's axe, or with a certain head profile, a Hudson Bay axe. It's light and packable, and that's why that size is popular for woodsbums that want to chop more wood than they can with a hatchet. A full size axe is more along the lines of 32-36" long and with a 2.5-3.5 pound head, although there are heavier axes. These aren't good for backpacking or camping, but if you want to chop some wood. . .
Next, the chipping I'll almost bet was from when you sent the axe into the dirt. Even top quality axes will chip if sent into the dirt and they hit the small pebbles and such in there.
Third, chopping is work. If you aren't used to it, it'll kick your butt. Contrary to popular belief, so will sawing. You have to practice to get the skill, and to get the strength and endurance.
Fourth, a 12" log is big. Unless you are building a cabin or cutting firewood for the house, it's bigger than what you should be going after when camping and such. You're better off with a full size axe on such a beast.
What are good axes to get? Well, the Gerber is fairly good (ok, I don't like them, but it's a personal preference thing). But to be honest, I wouldn't bother with a "good one" just yet. Our local Ace Hardware has Collins axes, everything from small hatchets to 36" behemoths. They also have Boy's axes (about the size of the "big" Gerber/Fiskars), for about $15. Youi can get 3 of them for the price of a Fiskars. They aren't the best, but they're more than good enough to practice with. I'd practice sharpening and using with cheap axes. Once you're good, you can get a good one.
With the Collins I was able to get them horrendously sharp with just a file and a coarse/fine combination stone.
While learning I'd learn with a full sized axe, with the longest handle you can get. This may seem counter intuitive, but a larger axe is safer. It does more work, so you don't become fatigued as quickly, and also with the long handle, on a miss, you'll probably bury it in the dirt (and get more time practicing sharpening) than in your leg. Our local hardware store has some pretty nice Collins axes that are 36" long, with a non-painted (for less friction) head for a whopping $24. One of those, a file and a stone should be less than $40.
For references, this is a great site:
http://www.fhwa.dot.gov/environment/Fspubs/99232823/toc.htm
Also get a copy of Mors Kochanski's book "Bushcraft" a must have, IMO, for any outdoorsman. He has an entire chapter on axecraft.