Great thing about the web no.1 - people sharing tricks.
BoingBoing has details of a system for printing from an inkjet to create home-made Super 8mm and even 16mm prints. While the resolution of the samples isn't great, and the sprocket holes currently have to be cut by hand, for those wanting a true desktop editing process without wanting to fork out for a transfer, the process, designed by artist Jesse England, is pretty impressive. The icing on the cake for budding celluloid czars is a follow up post from someone offering free software to turn their films into flip books.
Samples from Vimeo below...