Hi all,
First post here so be gentle with me

I'm not sure if this is the appropriate section of the forum to use but could'nt really find anywhere else, if the mods wish to move it, so be it.
I'm looking at building a media centre (MC) to replace as many of the various "boxes" around my television as possible. I'm hoping to run digital T.V. through the MC with the ability to record and burn programmes to disk, with pre-programming desirable. Other functions will be playing music and connecting to a surround sound system, I also want to watch be able to watch internet T.V. through the system, perhaps through a wireless connection. I've read the Driverheaven
guide to media centres which has provided me with some valuable info.
However I have some restrains, both on space and cash, so i'm look for some advice from you all.
Firstly, the space i'm trying to utilise is 460mm (wide) x 380mm (deep) x 125mm (high) which would normally accomodated a video recorder. This is pictured below.
I can probably gain a little in height (about 30mm or so) by chiselling out the three risers in lower part of the brickwork, as below
So i'll need either a Desktop or MC specific case, any (cheap) recommendations
I trade in computer components (mainly on ebay) and have a stack of motherboards in stock, so i'm hoping to use one of these to get the ball rolling (and to save money on buying a new one). I have decided on a Micro-ATX
Microstar K8MM-ILSR (MS-6741) would this be a suitable board for the project? It has 3 PCI slots, which for the moment I know one will be used for a freeview tuner (UK digital T.V.) another would accomodate a wireless network card and the third would take a sound card (which i'm willing to sacrafice).
So with all that in mind, does anyone have any advice for me?
Thanks in advance.