I really dont see the value of that barebones....
It comes with the A6-5400....which goes for $75 on Newegg.
It also comes with the ASRock FM2A75M-ITX which is $89 on Newegg
and it comes with a case and power supply....
So thats 75+89=$164...they are charging $330, so you are paying 166 for the case and power supply?
Seems high to me.
Then, you still have to add Ram, your re-using your own hard drives, and then you need to add a copy of Windows 7 or 8.
I think you are much better off letting someone on here spec out a build for you...maybe based on an Intel Celeron
or even the same A6-3500 they offer.
Using your Hard Drives I think you can get the cost way down and still easily do everything you want.
Revo Ion...XBMC For Windows...Dharma RC2