Hi Pete,

...

I think the backgrounds look great :) The only thing I would suggest is 
to lighten the selected tab a notch or two to emphasise it a little more 
- a bit like the taskbar buttons mouseover and selected states on the 
windowblind. I leave that up to you, it's fine as it is. Feel free to 
upload it :)

if you whack this link into the comments it shows the full Cabal 
catalogue - 
http://tiggz.wincustomize.com/gallery.aspx?SID=4234&libid=0&view=1&sortby=4&sortdir=desc&p=1&advanced=0&searchtxt=cabal&UID=695407

cheers,

Matt