I missed this thread completely at the time.
Chewy, if you have the dosh, get yourself a "Themochef" it's less than half the price of a "Thermomix", but I have cooked many succesful bases in it. Throw everything in, and forget about it, then press another button to blitz it up.
Can't comment on these other machines, but the Thermochef is a copy of the original Thermomix (which is now out of copyright), Very powerful, torquey motor that should last decades rather than months.
Ours now has a very hard life at our shop, it blitzes up fruit/nuts/coconut for Peshawari mix with ease. I killed a domestic food processor trying to do the same Pesh mix the very first time I tried it....
