I know making a suitcase computer is OVERUSED but I wanted to try it myself... ._.
Pentium III - stock clock 800mhz - overclocked to 1.6ghz (do NOT ask me how I achieved this, this mobo has a wonky bios that allowed me to do so)
64mb DDR 233mhz RAM
some sort of matsonic mobo
single stripped down 1x CD-rom drive