I have a Vitamix and it works extremely well. Blends anything I've tried so far, no problems. And it blends stuff that a regular blender couldn't mix well enough and you would get separation after pouring. Like solid coconut oil and frozen fruits. Pricey, but it's basically a commercial grade machine, so it should last forever with home use.
The vitamix came in yesterday and I made a veggie smoothie, damn this is one piece of equipement. Similar in quality to one of my high end power tools.
saw this on pbs last nite http://video.search.yahoo.com/video...sa+a+ži+dlhšie)&c=2&sigr=10prsqvoj&age=0&&tt=