thr hc-v201 should do the trick. it has auto/manual iris, so it will automatically adjust to brightness changes (filming off lit screen for example). you can also adjust the iris manually, which is even better. be aware that this camera has no audio in - you'll be limited to the internal mics. they should be way better than those on an ipod touch but you'll still hear it, if you touch the camcorder. the hc-v720 with microphone-in (and an external mic) would be a better choice, if you want to avoid this.
also, i highly recommend getting a tripod - this will really improve the quality of your videos (e.g. manfrotto 190cx with 701 video head - don't buy a really cheap one, you will probably regret it).
also in my experience (i own a pana af100, a sd100 and a dvx100 ) panasonic cams are a bit weak, when it comes to low light capability. sonys are much better in low light.
the zoom lens in the panasonic should also give you a better picture and more creative options than the ipod.
but as leandroc76 pointed out - you'll get a much, much better picture on a ti3 or similar with it's way bigger sensor and a good lens.
but you'll be limited to recording shorter videos (afaik you have to restart recording after about 15 minutes or have the - great - magic lantern firmware-hack do it for you - but you'll still lose a few seconds), there won't be a motorized zoom (so no smooth zooms) and you'll also need an external mic for better audio quality. also, you'll need quite a big lens on the canon to get the same zoom-factor (also due to the sensor size). and finally, you'll probably have to re-encode the video, if you plan to use imovie for editing (while imovie should re-encode the panasonic video out of the box). most other editing software (FCPX, Premiere Elements) should handle the DSLR Video just fine.
still, it's just no contest in terms of video quality (even if you use the dirt-cheap canon kit-lens - the sensor size makes all the difference)