We were thinking about doing a google hangout. Is that the best solution?
I've used this before, it's very slick, allows you to continue uninterrupted, and has free downloads for every device. Your members just join with one click. Also Q's can be typed and asked in real time, you just need a guy (or a girl) to take note and pass/read you the Q's as and when (as opposed to breaking the flow of convo to read and select each worthwhile Q);
http://www.gotomeeting.co.uk/fec/Quite a few webinars use this route...