Hey Malcolm,
I'm not personally using CC, but the designers at work are, and they were very insistant on upgrading from CS6 to CC because there is alot of additional programs and features that come with the CC version of the design suite.
http://www.adobe.com/au/products/cre...ing-guide.html
Skip down to: "Creative Cloud - Photoshop Photography Program"
Gives you lightroom/bridge/photoshop and it sounds like you get the full CC enhanced version of them. If you don't mind the monthly commitment it looks pretty good.
Happy CS or CC'ing!
Rob