My Dad's birthday is coming up soon, and I am having trouble coming up with ideas. He likes "techie" stuff, he's pretty into computers and he's also a do-it-yourself kind of guy. Any thoughts on what might be a cool gift for under $100? He doesn't play video games, but he uses his laptop quite a bit, so non-gaming software would be cool if anyone has any suggestions. I know I'm being kind of vague, but I'd like to get a lot of ideas. Thanks a lot for any help you can give me!