I can use my Logitech Quickcam without troubles in 5.9, using the gspca driver. I tested it with aMsn, Kopete and the beta of Skype 2.something (previous versions has no video support). The driver was easy to compile, but in 5.9, I don't know if it will work in 5.1.
BTW, I think I remember some post mentioning seamonkey is required for the configuration scripts that needs browsing, i.e. cups service.