Whilst Bamboo is certainly a fast growing screen, it can also be an invasive weed that is impossible to control. Its growth rate and suckering habit will keep you on the backfoot to try and control it. Bamboo is best grown in a pot where its root system is contained. The clumping Bamboo that you refer to doesn't share its suckering habit, so it may be good, but I haven't seen it used as a screen on rural properties (just the other stuff that has gone wild!). I guess it depends how many metres of screening you need to do.
We have used Syzygium Australe (Brush Cherry) which most people would recognise as a Lilli Pilli tree with the small pink fruits. Although it is technically a rainforest tree, ours have survived two floods and winter frosts. Of course they do need to be protected from frosts when they are under 1m in height.
Our hedge was planted in 2004, and is now about 3m in height and each tree is about 1.5m in width. We have just planted out another 50 in the house cow paddock (funny, jersey cow won't touch them, but our angus went to town on them!). We got them from a local supplier, they were about 12 inches high, and they cost us $2 each. We're hoping they will screen the paddock from the road equally as well as the first hedge does.
As you would see along the roadside, the RTA use a lot of accacias. They are quick growing and hardy, but have a short lifespan of only about a decade or so before borers get to them. Don't plant them if you suffer from hayfever!!!
Goodluck with it all