I have a really nice HD camcorder and really nice microphone set for the drums, but then how do I mesh what comes out of the mixer and the video from the camcorder together to create a video?

What program are you using that makes the videos, or if you don't have one, you need a program that will do it.

I don't know what program to use. Do you have suggestions? To edit my videos I use Corel Videostudio pro x3. I record everything though the mixer, but I just don't know how to put the video and audio together.

I always find myself at the manufacturers website for info like that you are asking. If anybody knows what works best for a device would not it be the maker of the item.

That's where I go for what I need to do! Works (almost) every time but not always easy. I still have a Magnavox DVD Recorder sitting here from x-mas that I still have not been able to figure out.
Good Luck!

If u want a video with what you already have, log onto your PC and check for movie maker software. If its windows, windows movie maker will do it. If it's a mac, use I movie (I have a windows and recommend movie maker) You can also buy movie software that is 10x more quality and has more to offer if you visit places like bestbuy, shop online or order out of PC magazines. As for a recording device, newer cameras with usb cables will work, or if u have an iPod touch/iphone u can use that and connect it with the usb charger to the front of your processor in one of the ports. Either way u need a device to record with (equipped with cables) , a computer, and the program for making vids. If u need to know anything else, let me know (I have made many videos on youtube)