Tablet pc with dvd burner?

I'm looking for a tablet Pc to use for art and design.
It would be best if it wasn't extremely heavy as it will be carted around alot.
A convertible design is best for me since I will also need to type quite a bit but will need the tablet touch screen for drawing and design work. And I need to be able to burn off projects onto disks to stop my art from filling up the hard drive and also to watch dvd and such.
I'm having alot of trouble finding what is out there and comparing them so any help is greatly appreciated
thanks