lol what other components are remaining and what would be the best and most cost efficient way of going about this?
Well you need a receiver with at least a second zone, which most have these days. This, besides wire and sources, is all you need to power your system.
Some receivers have networking capabilities so you can stream mp3s from your computer to your system. All of them will provide radio as a source.
Some receivers will have an amp section for your second zone, some will have a third zone to allow you to actually be watching a movie in your main system, listening to the radio in the bathroom, and listening to mp3s on the patio, but the third zone may or may not require another amplifier.
The amp section of your receiver needs to be powerful enough to power your speakers adequately, but they aren't terribly inefficient, so you don't need a ridiculous amount of power.
...etc.
Then, for sources I really think all you need is a blu-ray player (as long as you don't want to watch a movie
and listen to a SACD or CD or DVD-AUDIO on zone 2, then you would want a second disc-source device). There again is a large range of blu-ray players to choose from, though the AH favorite is the
Oppo because it can play absolutely everything. However, if you
do find yourself wanting to watch a movie in the main room and listen to a CD in the other rooms, you may want a cheaper blu-ray player and a second optical disc player of some sort. I personally would never recommend to someone that a PS3 is the best option for blu-ray because I am a firm believer in standalone players as opposed to a gaming console that can also play movies, but I am sure some will disagree with me on that.
You mentioned gaming, so I assume you have or plan on having a gaming system. I am certainly not going to tell you which one of those to get. You can see which one I favor in my signature.
I can't just list two or three components and say if you buy these you will be happy, because I don't really know that, and you may not be aware of all features, etc. that you may be interested in using in the future. That is why I asked about a budget.