You could also check out
www.saltwaterconnection.com (SWC) they make the extreme skimmers. I have one of their cone skimmers, the build quality is excellent and the customer service is great.
They also have every spare part for their skimmers which may come in handy in the future. They are located in Winnipeg. You can read up on Reef Central about the performance of these skimmers.
I would consider one of these before the Octopus brand IMO.