What kinda present....

Does a guy who loves his Civic and works on cars all day want for Christmas? I'm thinkin tools but I don't know the first thing about tools. This guy installs stereos and remote starts and stuff for his work, what kinda tools would this guy love to have? I know he already has a lot of stuff but not EVERYTHING. Any ideas? What are the best brands too besides Snap On? Craftsman?