Three have reduced the price of the 12 month sim only deal now to £15 which makes it probaly the best deal of its type around as it includes.

All-you-can-eat data and Unlimited Tethering
2000 minutes
5000 texts
5000 Three-to-Three minutes
Free Voicemail.


http://store.three.co.uk/SIM_Only/Voice_Pay_Monthly

The one month only version has also been reduced to £18.

http://www.topcashback.co.uk/3_mobile/  offering £63.91 cb for the 12 month sim only  plan and £36.51 for the 30 day one.

Making the 12 month one £9.67 a month after cashback  and the 30 day one £14.95 a month.

Before someone asks where does it mention tethering its covered here : http://support.three.co.uk/SRVS/CGI-BIN/WEBISAPI.DLL?Command=New,Kb=Mobile,Ts=Mobile,T=Article,varset_cat=internetapps,varset_subcat=3582,Case=obj(3599) ; ;)