I replied to someone instead of the mailing-list... my bad, please  
accept my apologies.

> I've not tried out Windows (and I cannot at the moment). My guess  
> is however
> that the two Apple keys on the Apple keyboard will be behave like the
> Windows keys.

The Apple key behaves like alt and alt like the Windows key (which is  
a bit annoying).
There is no "menu" key either.

>  I need to buy an USB keyboard [...] yes, the Apple one ;)
>
You could just buy any usb keyboard, but keys might be switched on  
the mac.
Although there might be software to fix that (see on www.macupdate.com).

> Any better suggestion? :-)
>
If you are running X and don't need frequent access to a "real"  
keyboard, for
OpenFirmware and stuff, you might wanna have a look at
Synergy (http://synergy2.sourceforge.net/). I use it to control the PC
(that I mostly use for testing web pages) from Os X and my screen has  
dual input.
But you can pick a vga switch for much cheaper than a KVM.

Anyway, that's my 2 cents... Wait no! Synergy is free (GNU) :)

Matth