There are several very nice skimmers on the high end on the market. Deltec, H&S, Bubble King, Schuran and I would also put RK2 in it, although some might disagree. On the second level, ASM, Euro-Reef, Aquamedic, Grotech and others are still very good, just not as costly.
IMO, skimming and good skimming is crucial to long-term success in a reef tank. You can build your own as well, the strength to any skimmer I believe lies in the pump or pumps as it were.
I have been working on my 600 gallon for almost two years in planning, thinking and such. The 165 was designed as a mock up of the new tank and you are wise in your thinking. You are welcome to come by the office and see what we are planning to do on this system. I feel fortunate that several of our local reefers from Del, Marcus, Jarod, Joe, Nate and others have offered their counsel and advice. Other friends from across the nation have also added valuable comments and suggestions. You are definately wise in planning carefully.
What are you doing for lights and pumps? I still am in the camp that flow is an overlooked piece in our tanks.
Kip