4 song -----> HELP

[viler]

Hi,
Please help to know artist of this songs.

1 (http://83.16.157.218/~piotrowski/untilted1.mp3)
2 (http://83.16.157.218/~piotrowski/untilted2.mp3)
3 (http://83.16.157.218/~piotrowski/untilted3.mp3)
4 (http://83.16.157.218/~piotrowski/untilted4.mp3)

Thanks.

[Mulla]

No.2 is on the Penitentiary ep on Biotic. Im 99% sure its 'Bad Dreams' by Facs, but it might be one of the others on there:
http://www.rolldabeats.com/release/biotic/bio004

No.3 sound familiar but I dont know what it is Im afraid