I need help with selecting power supply for my HTPC computer I am planning to build. I have an old ASUS P4P800 Deluxe mother board, ATI 9200 graphics card and 2.4 GHz Processor. I wanted to build a HTPC with these items. Most of the cases I looked at does not come with power supply. I want to buy a power supply that is quite and will go with this mother board. I appreciate your suggestions. Thanks.