About 6 months ago, I purchased the Garmin 350 which has a truck route setting and so far, it has worked very well. It also has a nice Lithium battery and I can download MP3s in it. The only problem is that they discontinued it, (I think because they wanted to get it off the market so truckers would have to buy a special GPS which was pretty expensive) Anyway, the 350 was originally about 500 dollars, but because it was discontinued, I found one at a Best Buy for 280 dollars. Certain stores might still have some. I had to call the 800 number to find one that was close to where I was that had one left in stock. (Just an FYI, they have different prices at different stores for discontinued stock, but they have to match their low online price). Anyway, as I said, it's been very reliable, and only a few times made truck route or other mistakes. It definitely beats all those years of maps. GPS is great! Good luck!