Having once labeled myself a "Major PC guy", you will do yourself a tremendous favor in the long run to consider re-inventing yourself into "Colonel Cross Platform". Hey, consider it a promotion.
In all seriousness, an open mind will help you appreciate and understand the differences. That said, you can use VNC (many different flavors available for Windows) to connect to a Mac quiet easily. The first thing to do is enable screen sharing on the Mac and you can do this from the command line (meaning also in a script or with
sudo /System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/Resources/kickstart -activate -configure -access -off -restart -agent -privs -all -allowAccessFor -allUsers -clientopts -setvncpw -vncpw passw0rd
Then fire up your VNC client of choice and connect with the password of
passw0rd. A tip I remember from a while back was to keep logout of your current user on your Mac before connecting. Otherwise you'd be prompted for a Mac login password after connecting but the desktop wouldn't render.