No problem! I was pretty lucky as far as mosh pits go - I was at the front right corner, right up against the fence, so none of the circle pits really reached me. Hell though, when Avenged demanded to see some circle pits going before their next song, it damn near did!
Yeah, I wasn't too sure either, but I emailed the Rockstar Uproar management and they said that an entry dslr would be allowed in, but I should check with the venue too. I couldn't find the venue's website anywhere, so I just rolled the dice on that and got lucky.
Haha just as well then, right? How'd you find it? It was my first concert, ever, and damn spectacular to me.