For the slowness of KDE and Gnome, I only really notice it when I loading the desktop manager. It takes a while to load KDE or Gnome on my 1.7ghz computer, but loading XFCE4 takes a handful of seconds. I do like having menus, like in KDE, but then again, I don't use too many programs, so I can fit most of my programs on the launch bar for XFCE. I also like the simplicity (I know it's overused, but for me it's true) of only having the shortcuts on one launch bar, vs having to go through 3+ branches in menus. Granted, in KDE and Gnome I know you can create shortcuts so you don't have to go through the menu system, but there's just something I like about XFCE4 over KE and Gnome. Gnome is very similar to OSX, and the main problem with those two for me is that I'm just not used to them. I use them at school, but I never get the chance to get under the hood and dig around in them....

I think they should develop xpde to the extent that windows user won't notice if you remove their windows and install linux instead... Then linux can be infectious.

Totally agree, if they had one last year june, by now I would have been replying to you in Mozilla :D