Cheap Mobile communications (GSM/GPRS/SMS) Shield?

Hello! I came across the GSM Playground but at the price, it's not exactly an entry-level component to play around with. Does anyone know of a shield that offers either GSM GPRS or SMS based communications? What are the options that are available? Like said, i've already came across GSM playground but it's a little too expensive.

Thanks!

I found this to be the cheapest one that I could find:

http://www.libelium.com/squidbee/index.php?title=New_GPRS_module_for_Arduino_(Hilo_-_Sagem)

but back then I bought it direct from Libelium. and it was relatively cheap. See how it compares to other shields.

Thanks guys, it seems to be the cheapest (Have been searching all day!)

I'm in the US, but can't find where to set up my profile.

I'm in the US, but can't find where to set up my profile

Click User CP (top of page) then the profile stuff is down the left hand side.

Mowcius