I will probably need an internet connection at the show, and if we are unable to get one via the uni I may have to buy a 3G USB data card.

Here are the options…

There are for 1 month or less minimum plans.

O2 – £30 + £2 a day for 500MB (0.5p per MB) or £7.50 a week for 1GB (1p per MB)

Orange – 30 day plans only (fail)

Vodafone – £40 + £15 per GB (1.5p per MB) – Pay as you use

T-Mobile – £40 + £2 a day for 3GB (>0.1p per MB)

Three – £50 + £10 for 1GB (