Nick - with respect, I think you would be nuts to get rid of your PWD6, most of the panel orientated folks on the forum would acknowledge it as being one of the best SD panels that panny produced.
Ask yourself this before you spend £2.5 of your hard earned cash.
- What HD content is really available?
- Even if, for example, you are about to get an Xbox 360, how do you know that you won't be more than ecstatic with the way it performs on your PWD6?
- Do you really want to pay a price premium for something that does not display all of the SD content that is available today as well as your PWD6?
- If you waited another year or two (or even 3) the HD sets will be into their next gen, cheaper, more reliable and there might actually be some HD content worth having.
Just think, if you save the money you have for upgrade for another year or 2 you might be able to afford a 50" screen.
Then again if you are lucky enough to have money to burn - go for the PHD8