Vertex Omega looks awesome. If I had a tank with a sump I would buy it no question.
I'm going to throw out some other options to take a look at. Some may require finding a used model though.
Personal experience with each of the below skimmers (usually the next size down).
-i-Tech 200 for light bio load, 300 for heavy
-SRO 3000int
-Vertex IN-180 with bubble blaster or Tunze pump
-Warner Marine (aka Aquamaxx). Check out the sizing at Marine Depot.
-Warner Marine MF-161 or 181 or SKIMZ equivalent.
No personal experience, but take a look at:
-ATB 840 (would definitely need to find a used model)
-Bubble Magus Curve (I think these come with
Sicce pumps)
-SRO XP 2000 or 3000
That should be a decent starting point.