There are many options but a particularly elegant one is the Bowers & Wilkins MM-1. It alone replaces all the stuff you have listed, takes up little room, and is reputed to have excellent performance. You should be able to find a dealer in Holland or order online for well within your budget. A nice advantage of a system like this is how easily you can move it to another PC when you need mobility or when you upgrade your desktop. I think you can even use it alone with a portable music player if you ever have the need, e.g. "party" mode.