I explored VuFind for this topic. I was really impressed - a free catalogue!!! It looks great and gives the impression of being very easy to use. It has all the features of an expensive catalogue but without the cost - the list of institutions currently using it was very impressive, including the National Library of Australia.
I guess because we have a new LMS, there probably isn't a lot of need for something like with in TAFE currently, but if I was working in a small library it would be definitely something worth looking into.