Lets sort this all out for Members !
1) 5GB a month is aimed at people like my Sister. Now on 300kb (was on Dial Up). It gives you the SPEED to Shop online & get your photo's & emails faster. 5GB is a LOT to the NORMAL School Kid or 9-5 worker.
5GB a Month = 166MB {5,000MB % 30) (it's not exactle that but close enough [unless your really ANAL]

)
So lets say 130MB even, that is a LOT of emails, shopping online & stuff. Each MP3 is around 3-6MB. Even getting a TV series like Joey

off Torrent (1 a week at 175MB) there is NO way that a NORMA user will clock up 5GB+ (unless He/She is on the 1MB now & wants to dwngrade to £17.99)
2) The 2MB line is Great NEWS. 30GB a month (1GB a day) is what we have NOW. Ok so we get FASTER speeds, but a NORMAL user would not hit 30GB every month...
I use my 750kb for a LOT of Vids (Dix-X & others) from Paying Forums. I run a few sites & do a lot of work. I get the Joey series & other 100MB+ Vids (Pop Songs off News Groups & Sites). I get Software like the NASA crap that was posted here (200MB) & Video editing software. :o My DU-Meter shows that in the last 1YR I have downloaded: Between 2.6GB a month (I was on 150kb) to 9GB a month. I think that even I would NOT hit the 30GB limit. & I use my Flashget a LOT. But over the month it works out less than 30GB. Some days I get 1.4GB & others 400mb
End of the RANT