I did some fooling around with Linux back around kernal 0.9. It's been a long time though. A lot of time spent experimenting with config files - there was no "self-install" at that time. Most RPMs were incomplete, there was no general agreement on file structure - great fun trying to get something working.Two things I can recommend to make your transition as easy as possible:
[1] download the latest Mandrake package. It's really done well. I installed 8.0 a while back just to check it out and it was as smooth as silk. If you can't download it (and I wouldn't even consider it with dial-up) buy it - it's worth it.
[2] get the "Idiots" linux book (the one with the chimp on the front). A really clear, excellent beginners reference.