I was wondering if anyone here trades on the stock market full time using OS X. And I mean full time and not on the side. See my parents already own an old G4 with tiger and now want to trade full time on the exchange. They bought a course to teach them how to make $$. The course included books as well as an interactive cd with some .exe and windows media stuff on it. They are now afraid that the stock market is an area dominated by Windows and want to buy a used dell workstation. I am trying to keep the family Mac but I don't know enough about the stock market to judge. They need 4 monitors. I know about using Windows on a mac pro but thats too expensive, they want a $1k used machine. The mini and iMac can't handle 4 monitors. They can't run virtual pc in emulation. They need all the speed they can get. They like tiger a lot but have been convinced by someone that they need windows. In short I know about the Mac but nothing about the stocks. Can anyone here help us stay Mac and not XP?