Thanks Freelanc3r.
It's taken me a while to pluck up the courage to do it myself, and I'm really happy with it so far. I must confess that it was not hugely difficult, although if I wanted an absolutely perfect finish I would have had to have gone heavier with the paint, which brings added problems with paint runs. I happened to want the slight variation in the shades so this suited me, but, if you look at the depth and consistency of G Dubs "Sharksmouth" skeleton, it's light years ahead of mine.
I've now got the more fiddly bits to do, as I will need to change the fan LED in my Zalman cooler, having never done anything like that before, and I'm seriously considering covering the GPU's in carbonfibre vinyl, as per another thread on here. I'll see how the GPU's look first though, then decide. There's also the PSU to consider, as the AX850 has light brown accents and I'm not too sure yet if they will show. If they do I'm going to have to do something about that, because the AX850 has pre-braided cables for what I need, but my existing HX620 doesn't, although it is red and black. Having never braided cables before, I'm leaning towards the AX, but we'll see.
I haven't changed the LED's on the top fan as I believe red is one of the colours it lights up in, and that you can set it to stay red. I'm not yet sure whether this will be sufficiently bright though, so I might end up re-doing the LED's after all. I'm also considering some LED strips under the cowling to highlight the Antec logo, which might negate the need for fan LED's.