Linux is crap, windoze is toss... 'sall about BeOS. The nearest OS I have found to being anywhere near as friendly as TOS.
Released free, and now only available from http://www.bebits.com/bob/11073/BeOS5-PersonalEdition.exe
Download it and run it on your 'doze box and it will install into a small 500 meg 'partition', which can then install itself into a real partition if you like it. Look at it as the nearest a PC will come to an Atari.