I wish we could get stuff like this for the UK. Don't even know if we have black friday pc part sales ;-;
Maybe do a little home media/NAS server or HTPC kinda thing with it.
I saw your post on yahoo answers, but deleted my answer and couldn't put this there, so I'm putting it here instead. http://pcpartpicker.com/p/12FDs
A better much processor and video card. You've picked an overly expensive power supply in your parts list. If you want, you could get windows 8 since it's pretty much the same price as windows 7, but that's your own choice.
The build list I put above would make a great gaming pc - most games on max graphics with a high fps :)
How come you went with the GT 640? For ~£70 you could have got a 7750. I just want to let you know too, that the integrated graphics are actually pretty good. I've been gaming on a mobile i3's integrated graphics while I wait on getting a gaming pc, and it's been coping. For a build that doesn't game, I would suggest the integrated to anyone.
I think this will be a great feature. I am always wondering whether to wait for a new series to be released or whether now is the best time to buy things, so this will make it a lot easier to do so. Keep up the great work!