Aside from your usual lists of friend, relatives, neighbors and co-workers, you might need help from your computer manufacturer or Internet Service Provider. At this point, probably not very many. You could very well be on your own. Also expect that there will be fewer books, videotapes and classes that cover the details of every conceivable alternative operating system. The market is small and the educational materials are likely to be limited and expensive.
Drivers are another issue.
All of your peripherals printer, mouse, scanner, modem, digital camera, CD burner require drivers, or little software routines, to help them talk to your computer. I doubt it, especially if your stuff is a few years old. It s hard enough to get everything humming when you re using Windows. And then there s software availability. Don t spread it around, but a lot of my friends use Macs.