Multimedia PC hard disk drive
For the hard drive we recommend getting the biggest size possible, at least 200GB capacity and 8 MB cache like this Western Digital 200 GB drive (B0000A0VAF). That way you can store all of your music, pictures and movies so they are available at the touch of your fingers. The 8 MB cache is a must if you want to record or encode video. It allows the hard drive to work with more data at once, thus preventing it from having to play catch up while recording your favorite show and missing frames.
It is not necessary to purchase SATA hard drives because its speed cannot be fully utilized just by listening to music and watching videos. It is wise to save the extra money it costs for SATA drives and put it into something more important for a multimedia PC, such as the speakers.