In my opinion, this is not the easiest way to animate a walk, because for each move of say a leg, the rest of the body moves to, so rather than animating parts, you should draw keyframes, and then fill in the frames between. So if you're aiming for a "correct" walk, you're making it hard for you by doing it piece by piece, since you'll need to eventually puzzle together it with corresponding movements in chest, arms, neck, head etc.

I'm using (Or was, my desktop computer died recently, possibly the psu, anyhow) WinXP on my desk comp, OS X on my laptop and Ubuntu on my server, and can't honestly say I prefer one over another in general. Sure, when it comes to doing certain things I might pick one of them, but as a general desktop comp, I don't see any reason to use one over another, because there's always some quirks in an OS that another does better, but it's just a circle jerk.

For me the important thing is rather that they all can work together, network shares, remote desktop, etc, and that works just dandy from what I've noticed.

Though, if I were to choose an OS to use on a laptop, I would choose OS X, if I have mac hardware that is, because expose and the touchpad scroll features rock (I know Windows have similar things, but from what I've noticed, those third party products aren't nearly as good as the ones that are in OS X, no fanboyism)

And for server, I haven't tried using OSX, but from sad experiences, I find myself more comfortable using linux distros for servers rather than windows.

I agree with Gil, start with OO, but I'd suggest C# instead, it's much more pleasant, and Visual C# Express is very nice.

Dunno how to describe it really, but his arms move the same way that terminators does when he walks, which is not alot

I've only got this reference, and it's a bit exaggerated, but perhaps you get what I mean: http://www.idleworm.com/how/anm/02w/wlk01.gif