If you haven't been picking these up as they're announced, Amazon decided to finally give you a way to get all 25 with one click over at their 25 Days of Free page (amazon.com) - scroll down past the days to find the checkable list and "Buy selected song" button.
Oh, one more thing - if you're GIFTING MP3s, Amazon says that you can get $2 off with the code GIVEMP3S. Details about THAT over here.
Kanye by himself did a pretty good show. From those that Bravo showed, Police and Beastie Boys were my favorites. I'm checking the website to see all the other performers they didn't show. Forgot Lenny Kravitz in Rio, now that seemed like a great time!