Ive got this 160qt Update International aluminum pot from instawares. Mine was only $110 w/shipping. I've noticed that within the last couple weeks, all of their prices went up.
Shipping to me in PA is only listed at $16 for the 160qt.
I bought my lid separate. It seemed to me that all of the bigger pots are 24" around, so the lids are also somewhat standard size.
Anyway, I'm satisfied with it. It is 6mm thick, almost 1/4". Durable. I'll also recommend instawares, though I think around the holidays you should plan on delays...