Hello!!
I came across a cheap and reliable bulk sms service that covers 801 networks worldwide. All you need to do is sign up to power-bulk-sms.com and request a free demo SMPP, HTTP API or a Web account. You can send sms with PHP, ASP, ASP .NET, Java, SOAP and XML.
It is a really great service and you should all check it out!!
Moren Folkson..