Well, the new computer is here and I'm installing WoW as I write this

A few questions & concerns. I originally asked (weeks ago) that they install the OS on the SSD drive. They did just as I requested (in hindsight I wish I hadn't asked, but c'est la vie) but it now looks like I only have 30GB left on my 64GB SSD. I don't see any bloatware and I have already uninstalled Office 2007. I'm not sure what else is taking all the space...

Also, is there a way to make my D drive (the data drive) my Desktop? I'm a bit unorganized and I like to just quickly save things to the desktop, but since I don't want to be writing on the SSD at all, to conserve space, I now have to create a folder on the D drive every time I install a program or download something. I suppose I could just stop being lazy and make shortcuts, but I'm overall concerned that my SSD is going to be filled up very quickly when all I really wanted it for was hopefully fast gaming. Any suggestions?