Windows 8 is actually pretty good--I've been using the RTM version since it was released, and I even played with a beta build for a short (very short) time. But yeah... the new "metro" interface isn't wonderfully mouse or keyboard friendly. Call me an old fogie <grin> but I agree; if I have a mouse and keyboard for the last what? 15 years? I've seen and expected that Start button, in some form, to almost always be in the lower left hand corner. It's irritating when it isn't by default anymore. So great find!
I searched for other alternative start menu buttons, and found this one:
http://sourceforge.net/projects/classicshell/ I've installed it, but since I've only been using it about 15 minutes, I don't want to say it's great yet. It is donationware (i.e., free to use, but they ask for a donation if you like it).
I hope (expect? wish?) that if / when the new hardware is released... AND eventually goes down in price (I'm assuming, maybe erroneously, but maybe not) that the new touch-screen hardware that is designed for Windows 8 will be tad more than I want to spend at first. Anyway, when it's released and reasonable (to me anyway) then I could see the "metro" interface being more useful to me, personally. I won't want to click/right click/keyboard type anymore. It'll be finger gestures on that touch surface.