Hi Moto,
I use a Thomson/Alcatel Speedtouch 530, which I believe has that capacity. I've not used it, but have read about it in the past.
It's an outdated modem, but their newer models may do what you need. Otherwise, you can pick up an old one, for next to nothing, like I did.
It won't do ADSL 2 though. I think the max speed is 8Mb/s.
If you want to check it out,
here is a link to the CLI reference guide for the modem. This is for the Australian version. The UK site doesn't seem to work for me at the moment.
Btw, how's your study going? Do you like going to uni? I don't think I could handle go back.
Oliver