Tacx Tao definitely looks nice and a lot of people seem to use them, but I have read several complaints about them getting bent, not holding certain bottles too well and being difficult to insert bottles into depending on your frame. Also, I've read at least one account of the tab below the bottle breaking off.
Maybe I'll order a few of the Prorace Lite Plastic cages from PBK and a few Tacx Taos just to check them out.