Just curious: what are you using now? People always say (I also do ;-): "Don't panic. Your current cam won't stop taking pictures, right now" if they are whining about new cameras... But well my camera almost DOES. I have 350D. I'm using it half private and half for my job (flyers, marketing product photography etc.) I often come to the limits of the cam...
For that purpose APS-C would be quite enough, but a customers asked me if Icould do a small image film of their company additionaly I want to start a professional video blog. And well... for that purpose a full frame cam would be kind of nice... kind of VERY nice
Especially at a project where you are recording yourself, a flip screen is a everything else but not "useless".
Get the 60DThe problem is that I made a big mistake! I went to the shop and took the 7D in my hand... The next mistake I made was looking through the view finder (man! The AF of the 7D is REALLY cool, the 100% VF also)
All of that makes perfect sense. If your current crop camera serves you well artistically and professionally I see no reason to switch to a different format. Given your specific need for this type of video application the 60D seems like a good choice.
But here is my thought - and take it with a grain of salt because I have different applications and rarely ever do anything that resembles professional work in those areas. I always enjoyed photography and if there sometimes is something that is somewhat "professional" it's more along the lines of a "vanity business". I really don't enjoy video production so it's just family stuff for me and very rarely helping out in a pinch. Hence, I have never even tried the video capabilities of my 5DII and rather rely on my little DV camera. And when I recently helped my wife with a work project that included interviewing people I actually took a pro video camera from a local studio with me. That was way easier than trying to figure out how to use my 5DII and hook it up to decent audio equipment etc.
What I'm saying is that, yes, the new EOS cameras are being used by professional and enthusiast video folks because of the large sensors, low light capability and DOF options. But it is also pretty difficult and in the end expensive to do this right.
If I did this for money I'd have each tool fitting each need. Get the 7D or 5DII (or whatever) that you like for stills and get a decent used video cam for the other stuff. Again, my 5c based on my limited and unique experience.