xps 8920 - audio - optical station - firewire - specification

I need to replace my old Dell Studio-computer with a new one. I am looking for a new one on the internet and I came to the XPS8920. I am doing a lot of videoediting... But some things are missing on these new models:

- firewire ports (because of the camcorder-cameras with 1394-port): solution I need to add some extension-card. Is there some recommendation of such a card?

- optical station. It is not clear for me if there is an optical station(cd/dvd-writer) in this model. Only a 'door' for such a station?

- audio-recorder. With the old PC I made audi-recordings (stereo) via the line-in port on the back of the pc. On pictures of the new model xps8920 I do not see any  line-in port. So audio-recording not possible? Is this correct?

Any advise is ver much appreciated