Well I have commenced my studied with Swinburne SAO and I can tell you that it's a lot of work but thoroughly enjoying.
I'm taking two subjects at the moment and would probably have been better if I had only taken on one (I'm working full time as well). However, so far, so good.
The course material is quite well presented although you are expected to do a lot of your own research. I have been surprised at how useful the newsgroups/forums have been for learning. It's very much
not one of those things which are just tacked onto "online learning" courses.
I'm going to go get some sleep now.
Cheers,
Carl