I am using a IBM ThinkPad, Garmin E-Trex GPS receiver, windshield suction cup mount, Interface connector with cigarette light adapter, adapter splitter, and a D/C converter adapter by Fellowes (purchased at Staples). If your computer doesn't have a serial port you will need a USB adapter which is suppose to be a faster stream anyway. Mine is by Belkin for $60. 00 at BestBuy. To mount the laptop I use a Jotto desk (www.jottodesk.com) mounted on the right side of the floorboard hump between the center seat and the cup holder close to the passenger seat. I am using the Delorme Street Atlas USA 7. 0 that uses voice navigation. Your computer will need to have Multi-Media for this to work. I did have a problem with starting my GPS before the computer. The computer thinks the GPS NMEA stream information is a mouse control and causes erratic behavior and an error message. Now I make all connections, boot up the computer, start Delorme program, initialize GPS, and when I get the "No GPS Fix" message I turn on the GPS receiver. The only problem now is that the voice navigation is difficult to hear while traveling. External speakers may correct this. If anyone has a fix let me know. Last thing is the map software does have errors that I can live with and the maps that use the USGS (United States Geological Survay) info are suppose to be the most accurate.