If you turned that build to AMD you'd save like £200 haha.
Also theres not really any need for a CD/DVD writer nowadays. When buying GPU's and such you do get a disc with them including the drivers, however if it's an older GPU, the drivers on that disc are usually old as hell, so you're better off installing the new ones straight from the venders websites rather than installing then upgrading. As for the OS, if you install it from a USB drive through a USB 3 hub, it will install quicker than using a CD :P Finally, games. Games are downloaded right from the steam client 99.9% of the time, so ultimately, having a CD/DVD writer will just make your case look... Ew :P
The only component I'd suggest if you're going to start a gaming channel (presumably) is a Card reader incase you record anything on an external camera and need to load it into your editor on the PC. With a
USB 3.0 internal card reader You'll be able to do this in no time compared to the SD card USB drive things :)