[ubuntu] What graphics card to use in a multimonitor setup?

view story

http://ubuntuforums.org – Hi! I'm going to assemble a new PC. The problem I'm facing is what graphics card to choose so that: - it will work without problems like freezes, hours spent on configuration etc - it will support triple monitor setup - it will be justa a good performance modern graphic card OS of course latest Ubuntu 64 bit. Any suggestions? (Hardware)