Cheap PAYG 3G SIM

[dododo]

Any know know of any cheap pay as you go deals for 3G SIMS? Ideally giving me a couple of Gbs, with the option to add more on cheaply. I have a mifi (unlocked) and want a PAYG SIM to put in it for a couple of weeks while I am in Madrid. I've been looking but they all seem so expensive and/or want me to sign up to a contract.

[dododo]

Thanks. I'll see what their prices are like.