Long before my obsession with coffee I had a much more expensive obsession with hi-fi. My first and most important piece of advice would be to forget about anything with a cd player. Music can be easily ripped to a lossless format and stored on a hard drive(s). Then you can invest in a DAC, a digital to analogue converter. I think the Dacmagic is available in Australia and is very well reviewed. If you couple this with a Logitech Squeezebox Touch you have everything you need, a remote, internet radio, and its a very compact system.
There is NO logic to buying a cd player anymore.
Im glad you were happy with your Bose system but for me they are the capsule coffee makers of the Hi-Fi world, more about lifestyle and looks than sound.
The above system would also make it very easy to add multi-room functionality if you wanted to further down the line.