Re: installing linux on an old desktop
you can install any linux you want on it, they all should work. linuxcd.org supplies any distrobution for a minimal fee. also due to the small size of the hdd i suggest one of the mini linuxes made just for old computers like yours that have minimal space. i just researched some and there is one called puppy linux that runs and boots entirely from ram. very small. i personaly preference is zenwalk linux(minislack). it is very nice, easy to use, also pretty small and only provides 1 app. per task. it is geared towards, internet, multimedia, and programming. i'm actually using it right now and i love it. anyway research a little on your own and choose. also, ubuntu is nice but not exactly small...
So it Goes.