Feed 5 optical zoom cams. USB or FW?

    Feb 16 2011 | 8:28 pm
    I need to feed five cameras into Jitter. They will be all plugged to the same MacbookPro but only once at a time will be capturing.
    The problem is that I need optical zoom cameras. So I haven't found optical zoom webcams, and the unibrain fireware cameras don't have zoom.
    Another option is using miniDV with USB stream, but the quality is so poor... I would like at least 640x480 and 30fps.
    Any ideas?
    Thank you soooo much!