I believe that quota is for the free university internet, which is accessible at the accommodation, in order to stop people using it for downloading and stuff.
"If you intend to use the internet on residence for personal items such as MySpace or Facebook, you will need to purchase Internet access via an external internet provider."
I'm hoping that means we get to choose our own speed / data limit and stuff, unless they are referring to those overpriced little usb things you get... Still, I'll see if someone there happens to reply, I think it'd be pretty weird ringing to see if their internet is fast enough to game on
EDIT: Ah figured it out. It says "External ISP is Everywhere Internet", I didn't realise that was an ISP at first but apparently it is..
http://everywhereinternet.com/index.php
Shame their website is very vague, doesn't include prices, speeds, etc.
Sent them a message asking about it though, and pointing out their lack of information, hopefully they improve it...