I have the Seagate 400GB PATA for a media drive. Frankly, I dont believe that the speed improvements for SATA justify the additional 200$ cost. In addition, the speed improvements wont really do much if Im just watching anime, or listening to mp3s off of the harddrive. For OS and games, i have the Raptor 74GB.
BTW, with these platters, you have 7.5% loss, so you really get 372.x GB