I'm horrible with directions(especially when I'm out of state)and I was thinking about getting one of these navigation systems for my car,probably from Best Buy. If anyone here has one,do you think it's worth the money and does it really work well? My brother told me about how his friend has one and how great it works. He said the voice on the system gives you perfect directions and it's pretty much impossible to get lost.It sounds worth the money. Any advice from you guys would be great. What is your opinion and what do you think?