Advice on components for a new PC

Greetings,

I am in the market for a new computer. I will be using the computer
as kind of a multimedia center. I live in a small apartment, so I am
interested in making the best use of my space. I plan to use one of
ATI's All-in-wonder video cards and then buying a 21 inch monitor to
use as a television. I will also have a CDWR/DVD installed so that I
can watch DVD movies.

Okay now that you know what I am going to use the computer for, I
would like some advice regarding the internal components. I have
looked at a lot of reviews on everything from motherboards to power
supplies and here are my results:


Case: Lian-Li PC-61 Black Aluminum

Motherboard: MSI 865PE NEO2-LS LAN/DDR400 AGP8X (Intel 865PE 800 FSB)

Processor: Intel P4 478 2.4 GHz 800 FSB

RAM: 512MB PC3200 400MHz DDR RAM 184-pin DIMM

Hard Drive: Western Digital 80 GB 800JB 8MB Cache 7200 RPM

CD-RW/DVD: Samsung Combo SM-352B CD-RW/DVD 52x/24x/52x -16x DVD

Video Card: ATI TV Wonder VE PCI Remote Control Edition

Power Supply: I have not decided on a power supply yet, but there are
a couple of reviews that I have referenced below.
http://www.anandtech.com/showdoc.html?i=1841&p=14
http://www4.tomshardware.com/howto/20021021/index.html


I would like to get any suggestions or advice about a good power
supply. Also the motherboard that I chose was found to be the best of
the bunch in a test in Tom's Hardware Guide. However, I have been
told that ASUS boards are better quality and offer better stability.
Basically, I would just like to get suggestions from a few different
people to make sure that I am not overlooking something. I don't like
to ask salespeople for advice because I never know if there is a
conflict of interest.