Thanks a lot guys! 
I'll probably go for this firewire card : http://www.ieee1394-produkte.de/PCI-Karte_Firewire_IEEE1394a_Texas_Instruments_PCI-F4-150.html
(It's a TSB43AB22 one, because i couldn't find a card with a TSB43AB22 chip in german shops.)
And the Focusrite Saffire Pro 24 without DSP, 'cause i only own some ipod
headphones.

I'll probably go for this firewire card : http://www.ieee1394-produkte.de/PCI-Karte_Firewire_IEEE1394a_Texas_Instruments_PCI-F4-150.html
(It's a TSB43AB22 one, because i couldn't find a card with a TSB43AB22 chip in german shops.)
And the Focusrite Saffire Pro 24 without DSP, 'cause i only own some ipod
headphones.