Iv rang broadband companies so much its unreal so i will try explain as best i can lol.
If you use alot of youtube,xbox,ps3/4, facebook and so on you will want alot of internet usage!
Now when they say unlimited it doesnt actually mean unlimited. I dont know why they say that. But on the phone always ask them exactly how much usage can you use within your deal! If they say you can use as much as you want without ever being charged extra then thats ok.
Also ring them and give them your house phone number and ask how much MB your line can handle. Theres is no point paying 50 euro a month for 50 MB broadband if it can only handle 3MB if theres another deal for 30 euro a month for 6-8MB broadband. Personally im with sky now any their great but we have a tv bundle pack and you only want the internet i believe.
Iv been with vodaphone before and they were good to. And i see they have a deal now for 35 euro a month you get "unlimited" broadband" (ask them what that REALLY means) and a free modem ( sometimes they cost up to 80 euro) and the first 3 months are free. And its up to 70MB broadband. you wont get that lol but anyway!
Thats a great great deal IF the "unlimited" broadband actually means UNLIMITED!