for a fairly reasonable set up i would budget around £200 for a decent dolby digital amp (yamaha make very good ones)

prob budget 80 quid for the front speakers, 30 quid for a centre and 20-30 for the rears

and leave about £50 for cables, speaker wire etc.

try www.richersounds.co.uk

i just bought the mission m3ci centre for £30 (£80 rrp) from them and its excellent

this amp would be a good starting place:

http://www.richersounds.co.uk/showpr...id=YAMA-RXV359

hope this helps