I need to be able to use my netbook at work where there is no Wifi, but I do not need a huge amount of bandwidth - less than 100Mb a month probably, and I want to keep cost to a minimum, as I need it only intermittently. It is basically so I can access my Dropbox from work (as I cannot have it on my work machine) and also lets me have a nose at sites that may not be suitable for work

I bought 2GB of bandwidth that came with a new T-stick last month but that's now expired, and dont particularly want to spend $50 a month doing that just for a limited amount of use. It would also be useful for the odd ocassion I go out of town
Regards
Peter