I agree with some of the replies regarding questionable value for money once you start adding boxes to a basic cyrus system.
We not long ago listened to a £5000+ cyrus system and were disappointed with the result. It was just another out of several combination we've tried over the months and the results, though not always 'awful' (bit strong a word) are not exactly making a case for cyrus'es 'upgrade' path.
We've all actually prefered the basic 8 components with nothing added though a psx to amp did improve the bass marginally and there was a slightly more ordered soundstage, but the difference was not night and day.
I dont want to put you off buying a system you've perhaps set your heart on or get a very good deal in the process. Perhaps you like it, many do but I'd say if you pay full price and have'nt commited yourself yet, listen to a couple of alternatives if you can.