mapping routes

No, the only models that are capable f that are the 7xx, 8xx, and the 5000 series.

I don't believe the 6xx series supports routes...

What you can do is use MapSource to create a series of waypoints along your route and save those as a POI file. Then use use the waypoints to go from point to point. A typical name of a waypoint might be "2--RT on HWY 57", so that the destination tells you what number waypoint you are picking and what to do when you get to the destination -- allowing you time to select the next numbered waypoint. I think it is Rick who is the proponent of this technique. Rick, the floor is yours.

I use the technique described by bentbiker (only I use Microsoft Streets & Trips 2008, instead of MapSource). It works great.

Yep. That's what I do. I plan the route in Mapsource, creating waypoints as needed to prod the GPS into navigating the route I want, then save each trip route waypoint list as a separate custom POI file. Then I can load them into the unit when needed just like any other custom POI. I can easily change and update the route as needed. I name the waypoints so that they display in proper sequence, and listing the road that I will be turning onto... like Way 1, Hwy 287; Way 2, I-80 etc.

Thanks for you help. I will try it.

I loaded some trips from MapQuest onto my Nuvi 750 and couldn't find them. I finally figured out that I had to import them before they showed up in my Trips Button. Now that I know the secret, it works fine.