Well, thanks very much to all of you for your replies. they have certainly given me something to think about!
I will need to speak to Meridian and see what they have to say about upgrading my speakers (if they still do), it seems ironic that the more expensive DSP5000's need updrading and my "cheaper" M60's do not.
I had always thought that if I ever replaced the 565 it would be worth waiting for the 861, but I cannot really justify the amount that it costs - even if it does almost guarantee a future proof (and superlative)system.
Paul, I am quite intrigued by the idea of using a PSP as a remote for the PS3. I have a work friend who owns one, so I may see if I can borrow it.
Am I right in assuming that the PS3 will now pass the audio to the processor using HDMI (rather than optical) via the HD621 now?
Thanks,
Conan.