Great idea! Something you may want to do that has worked for me in the past is to do more than just install linux, even for businesses and such. Having cash come in is important to any business and while I in no way want to discourage you from your task I suggest that you also think about doing some basic windows troubleshooting such as spyware removal, wireless network setup, virus removal, etc. What better way to convince people to use linux (or in my case BSD) than by being able to show some of the selling points?
Good luck with your business, I know that you wont really need it!
