FYI I've had a lot of conversations with my insurance agent about homeowners vs. commercial... what we concluded is with the level of professional work vs. personal work I am doing, that the homeowners was fine. I think it's very variable and depends a lot on your policy and your personal situation. I happen to have the bulk of my "camera time" on personal stuff, so that works out ok.
By the way, be aware of deductibles, specific riders for particular pieces of equipment, etc. In my case I actually have a zero deductible policy, and a specific rider for my camera since it is a particularly expensive piece of equipment.
On another note... Alpha's back!

Hi Alpha!