First do you really need high quality for YouTube? YT output that I have seen is very average. Any good HD camera will do the job. The subjects you are filming and the lighting may dictate your choice of camera.
What you will need is a good editor and, preferably, one that will transfer your video directly to YT. I am not a YT expert but it looks as though the video is compressed (downgraded) to take up less storage space.
In my case, I use Corel VideoStudio Pro X6 which will post directly to YouTube, Vimeo, Facebook and Flickr.
My cameras are a Panasonic HC-V700 HD and a Canon HV20. Both have excellent output, the V700 is good in low light conditions. The V700 is SD card based so the files are easy to transfer to my PC and the Hv20 is DV tape based and uses a Firewire connection to my PC.
I am starting a YouTube channel and I need a high quality camcorder to record my videos. I've done a bit of research and so far my first choice is the Canon HF G10: http://www.portagadgets.com/australia/product.php?productid=42515
But it is on the expensive side. Is the video quality on the HF G10 noticeably better than on less expensive models? I am willing to spend the extra few hundred dollars if it is, but if the difference will only be noticeable to professionals then I'd downgrade in a heartbeat.
I'd to love your opinions on the matter,
Also, I will be using the camcorder to record live subjects no more than a few metres away. No long-distance shooting at all (hope this info helps).