I have an IG pool with a 2-speed pump, SWCG, UV-Ozone (lowzone), sheer descent and solar setup off of e-bay.

2-speed pump - love it! It is nice and quite in low speed mode, and the efficiency of the circulation is better. I could use it to save on power, but the primary reason I have it is because I prefer to circulate water 24/7 like they do by law in public/commercial pools. I run it on high speed for a few hours a day to run in-floor cleaning, waterfalls, solar, etc. (I could use solar in low speed if I had actuators on a few more valves )

SWCG - LOVE IT!!! the water feels great. A lot less hassle. I add about 1 cup of acid/day to keep the pH at 7.4 like I want it to be. If I go away for a week, it climbs to 7.6-7.8

Ozone - Take it or Leave it, It's been a bit of a hassle trying to regulate the amount of air drawn into the system. Too much will reduce alkalinity due to constant aeration. The only thing positive I can say is that it MIGHT be extending the service interval on my cartridge filter, and I MIGHT use a little lower setting on the SWCG.

Solar set-up. I love the solar set-up, but you need to make sure you plan for it when you are having your pool built. The most important thing is keeping pressure off the returns used by the solar, preferably deep returns. You definitely want to keep the returns for the solar separate from the sheer descent circuit. Study the site at http://www.powermat.com before you close out the details with whichever builder you choose. I asked my builder to set me up for solar before I understood what was needed. He charged me about $200 and the two little PVC stubs he left me are USELESS. Luckily he did set me up with lots of returns and seperate circuits for each, so I can still make it work.