I only have the Demo, but it rocks! (I FINALLY got it working!)
As for the controls, invest in a joystick, or, like I did, here's my map: I use the arrow keys for moving INSTEAD of wasd, and use wasd for inventory stuff. Works a ton better.
As for fighting, moving the cam does take some getting used to, but I can't think of another way to do it.
So far, Great Game. Real version I'm getting soon, I hope.
Oh, as for getting it on the bargain bins, Try Half.com. Freaks like us buy the game, beat it in to days, then sell it half price at almost new quality there. I found one for 20 dollars, and it had only been played once!