Interpol- Obstacle 1, right at the beginning
Radiohead- Idioteque, when the chorus is playing in one year and the backup is chanting in the other
Mo-Do - Gema Tanzen, when he says "Immer Lauter Mit Der Musik"
The Lonely Island- I'm on a Boat, only in the video when the helicopter is flying in slow motion behing Andy's head
Daft Punk- Around The World/Harder Better Faster Stronger, when the two songs are going at the same time at the big climax
Animal Collective- Peacebone (the whole song, the first time I heard it)
Animal Collective- My Girls, right when the first "I don't mean..." comes in
Fuck Buttons- Surf Solar, around 2 minutes in
Audioslave- Like a Stone, right at the end of the guitar solo
The Bloody Beetroots- Warp 1.9 when the hoovers first come in
Ratatat- Seventeen Years when the straight quarter notes come in
Underworld- Born Slippy Nuxx, when the vocals come in
Dan Deacon- Snake Mistakes, "my dad is so cool..."
MGMT- Kids, the first time
Danger- 11h30, the intro
DatA- J'aime pas l'art, right after the screaming
and almost all really good mashups.
More things should be good.