As much as I'm impressed by the engineering and the image of the Canon C300 - and the fact that it works with Canon lenses natively - if I was buying a camera today I think I'd be drawn to the NEX-FS700.
Of course, this is all a little moot, as I don't have the money to buy either camera!
Speaking of Rule Boston Camera, they have two other Learning Labs and a Pub Night coming up. Be sure to RSVP to email@example.com:
WED: July 18: LED Lights: Ready For Prime Time
with Lighting Designer John Gates
WED: July 25: Capturing High-Quality Digital Stills & Multi0Media Content
With photographer Steve Dunwell
THU: July 26: The Long & WInding Road: Thriving in Today's Film, Video & Digital Cinema World
With Cinematographer and Director Austin de Besche
Finally, the Boston Creative Pro User Group has a couple of things coming up too: on Tuesday, July 24, 2012 the "Boston Premiere" of Adobe Creative Suite 6, and on Saturday, July 28, 2012 Visual Storytelling in Premiere Pro CS6 and Magic Bullet Suite with Simon Walker, a day long workshop (cost $99)