My advice=Buy seperate components every time, there are a few reasons for thgis=
You can upgrade a bit at a time, ie buy a nice CD player now, then a good Amplifier next year, then a good Tuner [radio unit] etc.

Each manufactuer is best at one thing, ie Denon may make very good Tuners [radios] for example, but not so good CD players
wheras another brand will be the opposite, [good CD player, crappy Tuner]

The companys that are best at making loudspeakers, only make loudspeakers.

If you buy seperates, and one unit fails, CD for example, you still have, radio, tape, mini-disc etc, if you have a midi system or music centre,, and one part fails, the whole lot has to go back, and you are left with no music till it gets fixed.

You can finfd good bargains, as hi-fi units are replaced each year, often whith just a slight change, ie a different colour dipslay, etc, you coulds buy "last years" model at a good saving, ie, my tuner is a Denon TU 260 11L, list price £150 , I got it from Superfi for only £70!
though there is probably a TU 360 out now,! who cares? :-)
The sound quality is exellent, I can get 40 radio statiuons in perfect stereo, and i have no complaints at all, i listen to the radio a lot, and i have certainly had my moneys worth out of it!

Whatever set up you buy, don't forget to buy decent speaker cable, it makes a big difference, you can buy bell-wire from the hard-ware sstore for 10p a metre, it sounds crap, or good stuff from the hi-fi specialist for 1 pound a metre, well worth it.john