I need some good techno or electronic music with a good hard beat or really fast. Suggestions?

I really like hard bass beats or like some music you see people do Jumpstyle too.

1. Technologic- Daft Punk
2. One More Time- Daft Punk (really good)
3. Around the World- Daft Punk
4. Da Funk- Daft Punk
5. Harder, Better, Faster, Stronger- Daft Punk (Kanye used this in Stronger)
6. Any daft punk

3Oh!3, Medic Droid, J Bigga, Metro Station, Daft Punk etc. there all really good, J Bigga is hilarious as well as really fast (try the song synthesizers)

Which programs can be used to download music to a sansa mp3 player?amazon.com sells mp3 files, so those can be played anywhere, even if you get a new music player. most songs are 99 cents, but some are lowered to 79 cents and stuff. They have most every big artist. limewire and frostwire are illegal, but free.