Windows 7 - Disable / rebind Win+X hotkey?

It it possible to disable Win+X hotkey — without disabling the Mobility Center itself? Or, better yet, use some other hotkey for mobility center (which, though, is probably simple) and bind some other hotkey to Win+X?

I have HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoWinKeys set to 0x01 already.

Additionally, I want to bind (shift+)alt+tab actions to Win+Z / Win+X — is that possible?
Additionally (in case this won't require a separate tread), I can't bind Win+` (at least in Launchy) — is there something special about this combination?

Thanks in advance for any help.

Install eventghost. You can configure it to capture just about anything (keystroke, remote control button press, etc).

Thanks, though it only works somewhat — and doesn't work over synergy-foss layer (I guess it filters near the keyboard driver level, not behind the system-service-kayboard-emulation).

So, are there other possible solutions? Really, can't Windows 7 be configured to disable this?

Any other ideas? Anyone?