I'm looking into buying an iMac G3 (Slot loaded CD/DvD) w/ 500MHz, 256MB (up to 1GB on this model i believe) and Mac OS X 10.4 (tiger i believe) installed. At my work we use Mac Mini's with the bare min to run 10.5 (Leopard) and they are kinda slow when ur trying to do anything other than internet and email. Is the G3 a good model to buy for $70 for a Mac n00b such as myself? i plan on maxing out the memory w/ 2x512MB and just scraping the 256MB in there. and if so what is the memory cost for a mac? is it proprietary? or can u slap any non-ecc SDRAM in there and have it work?