I went out last night to procure the movie's soundtrack. In one word: amazing. In fact, I'm listening to it as I write this. "Battle of the Heroes" is great, the choral part is wonderful. The music definitely captures the good vs. evil and Anakin turning to the dark side. Music from the entire saga can be found scattered around the music. The second track, Anakin's Dream, has a very different feeling to it with lots of solo strings and sounds almost Minority Reportish. Not that its bad, but different. Anakin's Dark Deeds almost brought tears to my eyes as I could almost see him killing the younglings. Later on, the Grievous talks to Lord Sidious is also well done, as the Hyperspace preview was only a mere glimpse into it. Later on, with Anakin vs. Obi-Wan and the Immoculation(sp?) scene captures the feelings of the moment. Finally, The Birth of the Twins and Padme's Destiny is a sad track, almost exactly like Qui-Gon's Funeral. Hmmm.....
Lastly, A New Hope and End Credits is great, with all the music and a surprise piece from ANH. Definitely worth buying.