Booting problem when usb is plugged in (inc. bootcharts)

[StarQuake]

When I boot my pc with my mouse or some usb-stick attached It hangs for 
exactly 10 seconds when displaying:

Initializing hardware.... storage network audio

after those ten seconds it continues with :

done [ OK ]

This is not a problem when I don't have any usb devices connected.

Here is some information about my laptop (HP Pavilion zv5450EA):

http://solid.bounceme.net/pub_files/bootproblem/sysinfo.txt

http://solid.bounceme.net/pub_files/bootproblem/bootchart-without-usb.png
http://solid.bounceme.net/pub_files/bootproblem/bootchart-with-usb.png

What could be wrong? Where can I find more info? What should I do?

For now i'll just plug in my mouse later :P

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