Edge1000 couldn't be more spot on.
Having owned everything from the XS-5DII, and having access to numerous Nikon's because that's what my Dad uses. I can assure you of Razeus misconceptions of a camera he's probably never used.
1. The AF is not as fast as the 7D/1D4, but it's not useable by any means. As it's been stated, with a good lens it will lock focus on stationary and slow moving targets with ease. On faster moving targets, you need to be a more experienced photographer... knowing hot to lock focus on the ground and nailing the shot as the subject approaches is key, if you want 100% keeper rates.
2. Speculating what size prints the OP will be creating, or that he will only be posting images online is just obnoxious. The pixel density of the sensor is an advantage when cropping and printing large scale prints, whether Razeus wants to admit it or not.
3. Old camera does not = bad camera. Only an inexperienced photographer would make a statement like that. Some of the best hobbyist photographers out there are using cheap Rebels or old 1DsI/1DI because they can't afford anything better. Some of the best cameras and lenses are made by companies like Leica and Carl Zeiss, which offer absolutely zero AF options... yet somehow they manage to be highly regarded. Shocking!
4. Most photographers with enough experience to use a 5DII will tell you to pick up a "real" flash or go home. Built-in flashes are not ideal for a camera of that caliber, period.
Ignorance is bliss, huh Razeus? The 5DII takes absolutely stunning photos when used by an experienced photographer. I shoot with the 5DII attached to a 24-70L because it's the most versatile setup I can afford right now, and let me say that the IQ is not understated. Equally Nikon makes a nice camera, and they excel in things like build quality and focus accuracy. To counter the argument that Nikon is just plain better, allow me to point out a couple of flaws with Nikon. Their lens lineup is disappointing compared to Canon, there's not nearly enough variety, and knowing which lens will AF on which body is frankly confusing. To boot, Nikon controls are horrendous... intuitive design is not one of Nikon's strong points.
What am I really saying? I'm saying Canon and Nikon both make excellent DSLR cameras. If you think one is entirely better than the other, than it's painfully obvious you have very little experience with either system. At the end of the day, I chose Canon for it's Lenses and Intuitiveness. I'm most shooting Fine Art photography, and could care less whether my camera nails the focus 99% of the time, or 90% of the time. Nor do I care about spray and pray capabilities. It's relative to your needs, if you like Canon than stick with them. If you're disappointed with your results, and find practice with the camera isn't improving the situation. Then by all means, try something new. Being a good photographer is about 15% camera, and 85% the person behind it.
) The D80 (which from some unscientific testing with a buddy of mine has a more reliable AF system than the 5D Mark I; from what I understand the Mark II uses an almost identical AF system) gave me a lot more misses where the focus was off by just a little bit.
