Be really interesting if it could be made to the look like the mac os completely with highlight on click for the navigation buttons or even drop down menus. Would need rounded/beveled corners though in my opinion.
PPC: PowerMac G4 800 DP QS, Bondi iMac G3 333MHz (Upgraded from 233MHz) -- 256MB, Performa 6100/66 -- 72MB RAM - hd now dead :(
68k: Macintosh LC II -- 12MB RAM
Older: Apple IIe Enhanced -- 128KB RAM, Newton eMate 300 w/memory enhancement -- 4MB RAM