Dear members

I am searching for some gsm device that can be interfaced with a gps device and then send the lat long as a sms message to an another mobile connected with a server that can be used for traking any system.

Currently My pc connected with the gps can get the lat long then it send the lat long by sms messaging. I need to replace the pc by a interfacing deive or any other cost effective device.

I have found siemens m20 but this is very costly. If anyone knows any other cheap solution then please write here.