[LAU] recording with firewire device and webcam / alsa and freebob together

Hello, I just joined the list, so I hope this is the right place for this question.. I have a M-Audio Firewire solo which I use with jack and firebob to record audio. I was thinking about making a little video with my Quickcam 9000 Pro, but because the audio quality of its built-in mic is poor, I wanted to use my nice studio mic instead. I am currently using guvcview to record with the camera, and it has a selection of input options, on which, when jack is running, an extra option appears: "system". I thought, wow, maybe this actually supports jack! But when I try using that option it just crashes. Oh well, I didn't expect that to work anyway. But I thought, okay, maybe I can set up a virtual ALSA device that somehow connects to jack. Then I could record for that device, which would actually just be a jack sink (which I would have connected my mic input to). I can't figure out any way to do that, though. I searched around for ALSA jack clients, couldn't find anything. I tried running two different jack instances (one with alsa, one with freebob), but they didn't seem to be aware of each other when I looked at the connections panel in qjackctl. Does anyone have any suggestions here? Another reason I'd like jack and ALSA to play together is so that I can use my speakers (which are connected to my PCI sound card) to play audio from Ardour while I am working on takes with my firewire interface. Thanks for your help! Nick