my idea - again
would be to go into an audio shop and have a listen to all the range they have in there, this will get you a pretty good stand on whats avilable and show you first hand whats out there in your price range.
ideally you should match up all the speakers, ive matched my fronts with the surrounds, but have a yamaha centre - as its pretty much just used for voices in movies - it didnt bother that much. next on the list is a sub, and im not sure where to go with that so im holding off for a litte
ohh and buy a decent receiver to start with and make sure it will do want you want because i thought i had a decent receiver until i found out the following..
-it doesnt support hdmi
-it only has one optical input
-you cant run optical when using component video (you can only use coax with it!!)
-id like to manually set each speaker while still listening to it - which i dont think i can do - i can only use the test tone feature..
umm, thats about it really
didnt realy help you much thinking about it