Enjoy your new addition! I knew I wanted an electric after just a few months of playing accoustic. Never looked back. I'm a fan of dual humbucker guitars - I can get a lot of sounds out of mine!
The SG is a beautiful instrument and I hope you have a great time with it.
And you know what? It's great to be able to show off your new guitar, especially to an appreciative audience like the Chordie forums. So why not hop over to the "Your best guitar" thread and post there, too? You can take a look at mine while you're there!