Hi Boycey,
Yes, that is a good choice of receiver! Like Flappo, I now always recommend Yamaha receivers as they are great value (they seem to be good at whatever they make, whether it is a motorbike or a grand piano!), but Pioneer are a very close second place.
As the SC-LX56 has pre-out sockets fitted for all audio channels, you can easily connect stereo Beolab speakers (eg. Beolab 3) to these sockets using special RCA to DIN line cables (I build versions for almost all models of Beolab speakers, including Beolab 3).
Beolab 2 or 11 subwoofers and Beolab 7-x or 10 centre speakers can also be connected if required. If you need any further help with cabling, please feel free to ask.
Kind regards, Steve.