My brother uses this option click here as he's too far out of town to receive broadband via his phoneline. It has a good speed and if you're not a big downloader or online gamer, it might be a solution for you.
"Thanks! I have to slide a 3G sim card next to my battery right? Do all laptops have this available, or is there a specification I have to look out for?"
I don't know if you were directing that question to me or not. If you were, then no, you only need the modem and a USB port on your laptop/PC. The modem takes the SIM, not your phone, your phone is not involved.
Just get a landline installed and dont tell the land lord, tell her it was allready there and you just had it switched on. Its not upto u to prove it was, its upto her to prove it wasnt, and thanks to the data protection act she may find that difficult, if she could be bother at all.
If you get really desperate, have a word with some of your neighbours and find out who has got broadband, and would they be willing to share if you pay for a wireless setup. Or if they already have a wireless setup, how much to join ???