You could run a little phantom unit like the PS-2 that can be had for $100 used but it's probably not worth it. The NT-4s 9v internal will do the trick. The larger factor is the automatic gain control that is built into your camcorder. It will play around with the levels on its own. If you're on a budget, I'd spend the money on a minidisc recorder/JB3 instead, and synch the sound up after the fact. That'll give you the best results for reasonable $.