control the light and the distance of the camcorder (hence its built-in mics), you should be fine with whatever you choose. The closer you get the mic(s) to your mouth, the better your audio will be. An external clip-on mic (lavaliere) or shotgun mic will likely be a lot better than using the internal mics. As far as I know, in the price range, the Zi8 is the only one with a mic jack - but it does not have manual audio control.
Whether "minor" editing (or not) , the video still needs to be usable by the computer and the video editor you plan to use. We currently have no visibility to either in your environment.
Be sure to use the white balance capability. A "worklight" from the hardware store may be a worthwhile investment to ensure good, full, bright, lighting.
For a few more $ and a bit of patience, look at the Zoom Q3 HD.
Kodak consumer video products (and the Q3 HD) record to QuickTime MOV files. Can your video editor deal with them? If not, transcoders (like MPEG StreamClip among many others) can be used... or a different device needs to be identified.
As you can see, I'm the Movie Critic Next Door. Hello. *waves* I'm in the midst of the long, slow process of building a better net presence for myself, and I keep getting the same advice -- that I should post videos of my reviews on places like YouTube.
But I know almost nothing about camcorders, and the amount of different features out there is nothing but confusing to me. Basically, all I'll be doing is recording myself at my desk, so I'll have control over light levels, and I'm guessing I won't need an external microphone since the sound will be pretty constant as far as volume and distance. I want good picture quality as well, but except for minor editing (I have a musical sting I'll want to add in, for instance) I don't really need a lot of complicated features. Frankly, I'll be lucky if I can figure out how to add in the music. Heh.
Would something like a Kodak Zi8 work for this? I'd prefer to spend somewhere between $100 - $200, and that seems to be about the best one in that sort of price range; but I could really use a more informed opinion or three. Does anyone know of any other models that I should look at?

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