I have compiz on Fedora, I keep it enabled 24/7 because it has the nifty window selector like OSX and some usability tweaks. It was installed by default and only took like 3 lines in xorg to enable it
I love my Linux install:
1) Gnome VFS allows you to easily hook up SFTP/SSH, NFS, FTP, SMB, etc as if they were a hard disk. This is invaluable to people doing remote development.
2) You are virtually virus free. Unless you do something really stupid nothing can infect you
3) The platform takes alot more before it seems slow. I reguarly keep firefox, secondlife, ajunta, rhythmbox and some other accessories open and experience no slow downs and everything is snappy.
4) You can beackup incredibly easily, weather you choose to just tar it up or use rsync it doesn't require expensive tools to do.
5) Development is alot better on linux IMO. Even when I had to fix bugs in VS before turning in an assignment I would always program in Linux.
6) Services are clearly represented, no more guess that service when trying to eliminate bottlenecks.
7) Package management, nothing like being able to sit back every few days and run 1 command vs getting spammed with update dialogs.
8) Free, there is no price to upgrade when the time comes. Microsoft's top version costs 500+ and doesn't do half the stuff.
9) Gaming actually is pretty good, Get Quake4 installed and you will notice that the linux version owns the windows version in level load times and sometimes FPS (note that linux drivers are rarely ever tweaked like the mainstream windows ones)
10) time to take my shower
