Hey, i still use Windows ME on my old laptop. It's not a bad system if one keeps the registry clean. The System Restore feature which it shares with Windows XP is a good thing. Admittedly, it can be buggy, but i believe that it got a worse rap than it deserves.
I thought it was pretty twitchy. XP is immensely more stable. But it may have been the AMD Athelon CPU I used in conjunction with ME.