Hi eveyone, i have been trying to research for info on the net but am totally confused!

I was going to install a multi room music system in my new house. My original plan was to use a dedicated hard drive PC system to store all my music. I was then going to wire speakers to 4 of the rooms. (I was going to wire because it is as handy when building a new bungalow). I plan the speakers to be flush ceiling speakers.

My problem is i want to control the system wirelessly. I want a fully graphical remote control with a color lcd screen where i can view my playlists exactly like windows media player or something. Could i use a pda or something to do this?

My questions are: (!) 1. Do i use a pc or a dedicated "hi-fi" hard drive sytem?
2. I assume i will need an amp or something to connect between the speakers and the hard drive?
3. Is it ok to use wired speakers? I see lots of stuff about wifi connecting pc up to a stand alone stereo system, but not just to speakers

You will no doubt have grasped by now that i know nothing about this!

So i am planning a system, which is controlled wirelessly, but the actual music can be wired to speakers.

Help...............!

Thanks for taking the time to read all this