Colin - http://www.dpreview.com/news/0809/08091702canon_g10.asp
If you could pickup one of them for the right price I think you'd get an outstanding camera that you'd not replace for years. Perhaps only limited by the zoom ability of the lens, but otherwise it's properly good. SLR electronics (the image processor is the same as the one used in the SLRs) in a smaller package.
Or even go back to the G9.
There is a G11 out now, but it's £500+ or something ridiculous!
The other thing to maybe consider is the "EVIL" cameras that will probably take over from SLRs in the coming years. Especially at the lower end of the scale. EVIL is "electronic viewfinder, interchangable lens". So basically an SLR without the mirror and viewfinder assembly. So you get a less bulky body, but still with the ability to add some fairly meaty lenses if you want. Olympus and Panasonic and now Sony have got models out so far - the Olympus and Panasonic share a lens mount too.
They're expensive now, but if your current P+S is holding up well enough then maybe last it out until one of them becomes a billy bargain - I know you're a fan of HUKD.