Thanks

I think now looking at the new designs I see what the 'unbalanced' look is. I think its the top left of the black base part (control panel) - it looks slightly lurching and needs tuckin in a little to let let the lower half stand proud, like some of the new designs by Baker.
I really like the kidney shaped ones, but the problem I can see is that I don't want to make it too deep (32-34inches at the most) and the narrower kidney shape would make it too deep. The size of my original was just big enough to cover a 23 inch deep tv/monitor.
btw, feel free to send me the file (I used visio on my drawing, but also have autocad). it is "neil at retrospec.sgn.net"
Thinking more about the design, if i really wanted to I could easily mount the top half so that it swivels and it would make it easier to watch tv, sit down whilst playing or allow smaller people (read, my children) to see the screen easier.
[edit]
Right, taking into account the various new designs, I've chopped them around a bit a came up with a couple of designs that should work with the right proportions for fitting all the components, attached/below (ignore the artifacts and the dodgy merging, I did them using mspaint). My main goal was to allow the curve at the back to be seamless from bottom to top, hence the narrowing down to two basic shapes:
Neil.