I'm using this for lots of YouTube videos.
Red EpicX 5K
We record sound double system. A portable Marantz flash recorder with Shure pre-amp and Sennheiser ME-80 supercardoid
The last music related video I shot was a promo for an EP with an older version of the red camera. Audio was multitracked through ProTools and mixed for the final piece.
https://vimeo.com/44106817
I'm not sure this was the type of YouTube video you meant, but it's what I use.
www.tcmotion.net