Who was aking about a MiFi at Marbury? was it Jayr?
Sorry, I was supposed to post these links when I got home, just remembered when someone asked on Faceache
Anyway, Here are the ones that I use, just click the text below[You must be registered and logged in to see this link.][You must be registered and logged in to see this link.]
Gone up slightly since I bought mine, they don't start till you 1st start using them, cheaper buying a new sim than topping up at them prices, might find them cheaper on Ebay - I haven't checked