From a comment:
Hi, try www.mdeckport.co.uk you can get cheap sms to send worldwide you can also use it from your phone ( needs to have wap) so its not limited to your computer but the link for sending on the computer is web.mdeckport.net. it cost £1.50 for 100 sms text MEDIA to 80996 or they give you 10 free credits to test it out first test FREE to 80996.