Oh, the memories. Like many others in this thread, Slackware was my first. I still smile thinking about the bootstrapping process I managed to figure out (I was ~12 years old at the time). We didn't have much money, which meant we didn't have a whole bunch of floppy disks laying around. I managed to scrounge up enough of them to get the A series and a subset of the N series (just enough for PPP and FTP). Once I got a working setup, I dialed into our ISP and slowly downloaded extras until I had a usable system. First X, and then a graphical browser, and then the rest. Fond fond memories.