If you ever wondered which is a better graphics card to get for your purpose, I would suggest a visit to www.gpureview.com. This site is self explanatory and provides, what I believe, to be the best tools for specification comparison of video cards.
http://discussions.apple.com/thread.jspa?messageID=6873260&tstart=0 Ok Only works with latest version of Mac. The Version I am working off is 10.5.2 OSX. Make sure that you download the Mac Drivers for your PC and Install. First Open up Safari and type into the the address bar http://localhost:631 and click on Add a Printer Type in the appropriate Names Locations Etc. and Click on Next. Choose Samba and click on next. Ensure that you type in the URL as smb://username:password@(IP address)/sharename