First of all, i'd like to thank you guys for all your input. it has been extremely useful.
I went into the store today for a (stereo) demo and in the end, i came out with the YAMAHA RX-V1700 which for an extra £50 blew the ONKYO away in my opinion (expected, as they are in a different price category). The ONKYO is a brilliant amp, but as it will be used mostly for music, i chose the YAMAHA. i am aware that this amp won WHF best av amp in 2006...Did i get a good deal at £450???
Cheers.