Is it worth switching to a Mac?
bprater: If you want to go native, this list of Mac counterparts might help you:  Eclipse - There is a Mac version.
  UltraEdit - Coda or Textmate.
  SQLYog - Sequel Pro.
  WinSCP - Cyberduck, YummyFTP. Tons of clients. Check out ExpanDrive for some real fun. 
  TortoiseSVN - Syncro SVN.
  Adobe CS3 - There is a Mac version.
  Camtasia Studio - Screenflow. 
  MS Office - There is a Mac version.
  WAMP - There is a similar MAMP. Then again, you are running on a platform 
         that has all those goodies pre-installed and ready-to-go!

Anyone have some additional suggestions?PS: Virtualization has a cost associated with it. I only fire mine up for testing. Make sure you max out the RAM you get on the machine.