I'm currently in the market for a portable navi unit. I was looking at the garman 650. But from what I'm reading this unit only has the ability to put in one waypoint. So saying for a say 800 mile trip the only points you can put in are the start and end, nothing else in between. I would think that would be something that one would need. Now please understand I'm TOTALLY new to the navi scene so please help this noobie out. Any advice or direction would be great.