I tried em guys, and there's one caveat. When a unit is selected, the highlight box is in 2D, hence you see two boxes. Very disorienting. As far as the 3D effect if you don't select a unit... Stunning! I'm kinda mixed though toward how they would improve my CM playtime though. I like to lock onto units and get the behind the shoulder view. Fatiguing when done with the 3D glasses.
As far as the hardware, I happen to have a pair of Elsa's wireless glasses. They are comfortable and cost $80 at a local Computer show. Perhaps you can go to one in your local area and preview a pair?
The software, for me, was an easy one. If you are one of the multitudes that possess an Nvidia product, you're in luck! They have extremely stable drivers available on their driver download page at their website. Otherwise, you'll be stuck with using the provided drivers, and they may be a hit or miss affair with the "other" brands of video cards.
Good luck!
Bigmac out!!