Adding GPS

USB GPS receivers
(http://www.jr.com/microsoft/pe/MSI_STREETS2K6G/)
 * Microsoft Streets And Trips 2006 with GPS unit - $29.97+ship (no tax)

(http://www.buy.com/prod/ambicom-gps-usb-gps-usb-adapter-for-microsoft-windows-laptops-ambicom/q/loc/101/202426758.html)
 * AmbiCom GPS Navigation USB - $44.24 (no tax/ship)

(http://accessories.us.dell.com/sna/produc/GPS_Software_for_Laptops/productdetail.aspx?c=us&l=en&s=dhs&cs=19&sku=A0655906)
 * CoPilot Navigator 9 USB - $49.99+tax/ship

(http://www.amazon.com/DeLorme-Earthmate-GPS-LT-40-2009/dp/B0014A2LJ8/ref=sr_1_2?ie=UTF8&s=software&qid=1223927420&sr=1-2)
 * Earthmate GPS LT-40 - $49.99+tax (free ship)

PC GPS software
(http://www.laptopgpsworld.com/laptop-gps-software/37-list-laptop-gps-navigation-software-programs-reviews.html)
 * List of PC GPS navigation software and reviews

Links
Laptop GPS World