I've recently had some issues with my 2 PCs (more details here: http://www.bleepingcomputer.com/forums/t/602602/system-freezes-no-bsod-while-gamingfurmark-2-pcs/ ) and it made me thinking that I should again consider taking the leap from Windows 7 to Ubuntu.
What should I know? Where do I start? Will I face problems with compatibility? Will programs/games/drivers etc run OK? Is this something you would recommend for someone (relatively) inexperienced in PC issues?