I am shopping for a new truck right now. I don't want to get anything older than a 2004. The newer the better. I am looking to spend around $25,000. I really want to get a diesel, but all I have ever had was gas, so I don't know what to watch out for when buying a used one. Any tips, or things I should listen for, whatever would be appreciated. I am leaning towards Ford right now because I really like the looks of them, but I am not opposed to Chevy or GMC. No Dodge for me. Also, I have found that with all of the rebates etc. right now that I could get a brand new 3/4 tone 2007 gas truck for the same price as a used diesel with 40-60,000 miles on it. Thanks for the help.