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Use GARMIN GPS-35 application module. Very nice tiny blackbox with few meters of cable. Weatherproof sealed. Need only only pwr and you got output data in RS232 NMEA format. http://www.garmin.com/products/gps35/
Some time ago (1-1.5 years ago) I play with chinese modules SIRF . It was based on SIRF controller and have price near 60 $.
It support NMEA protocol and binary SIRF protocol.
If you need any additional info PM to me