Hey guys, pretty new to mac. My wife got one from work they were no longer using and I was wanting to upgrade it to a newer OS. Right now it is on 10.3.11. It had 512 of ram before I looked around the house and happen to find some old ram from one of my old pcs to throw in there.. seems to have picked it up and is wrking so now it has 4gigs. It has the 2.5 processor which should be enough I would think to run a newer OS. questions.. hope someone can help. 1. It has only an AGP slot for a video card. Currently ATI 128 MB video card. I know AGP is pretty outdated but can someone suggest a better video card? 2. What would be the latest OS I can use on this?