Does each country have its own version of sign language?
each country has its own individual language (just as spoken languages differ), and some of the sign languages can be very different, british sign language makes use of both the speaker’s hands, but there are some languages that are signed only using one hand (usually the dom hand – the hand the speaker writes with, the dominant hand). try http://www.auslan.org.au/ i’ve had a quick look and they’ve got some signs and finger spelling on there, and they’ll probably have information about courses as well.