Pete, Saad, I missed your question about minimum capacity. I think B.E. is right about 2 #'s I have not done a small batch lately, on the other hand, I just did an 8# batch saturday morning in the stainless bowl, came out great, and the mixer had no problem with it at all, could probably go to ten if I wanted. I took some video of it and may post it on you tube if anyone is interested. -marc
Marc, I visited the Bosch dealer where I live since it's the only mixer available to me locally among the three (Santos, DLX and Bosch). It turns out that the model you have is not supplied to our region but there was a different similar model. It's model number is Bosch MUM7300 (
http://translate.google.com/translate?u=http%3A%2F%2Fwww.spar-momsen.dk%2Fshop%2Fbosch-mum-7300-1607p.html&sl=da&tl=en&hl=EN&ie=UTF-8) and as you can see from the picture is consists of only the bowl which is fine by me. What's cool about it is that's it's stainless steel, I was turned down by the Bosch cuz of plastic but now the situation is different. Now if I buy this Bosch mixer, I will get support for it and warranty, it's on sale! $339

and it satisfies my stainless steel addiction. I'm not sure though if it can perform the same as the one you have but looking at the specs, it looks similar.
Below is an image of it, there are 2 attachments. A whisk and a dough hook. Is this hook similar to the one you have on your Bosch mixer?
Saad