I have to disagree with some of the comments on the Beaulieu cameras.
I have a 4008ZM Super8 and an R16 16mm.
In particular with the super8 camera, the Beaulieu is the only camera that is like a real scaled down proper Movie camera - you get a proper aperture ring and a mirrored shutter etc etc.
The advantage of them is that they are easy to service because they are designed to be serviced and, critically, there is a supply of parts. You just have to have them done by the right person. The only tricky thing is that there are only a few people factory trained to handle them (although others who are not factory trained, but still good)
The best is Bjorn Andersson in Sweden - he has a huge stock of parts and handles repairs and service work from all over the world. He has serviced both my cameras - the 4008 cost about £200 to do.
Both operate brilliantly and up to their max frame rate (70 and 64 respectively)
I recently took the R16 on a ski trip and snowboarded with it in a Lowpro rucksack or hand held and it performed flawlessly, even at high altitude (13,000ft)
As regards cost I have to say I now shoot more 16mm then super8 as the cost, today, is about the same - in Europe at least. With 16mm I can buy direct from Fuji for £15 +vat / 100ft. and have it processed in London by Soho images (overnight if I want) for 0.10p /ft. I then have the negative scanned on a Rank Cintel at a post production house near where I live in Birmingham.
However this is all for colour neg and I haven't bought any B+W for ages.
So my vote woudl probably go for 16mm - there is a much wider array of factory packed film too, and more labs that handle it.
A great website to look at and ask some questions would be
www.filmshooting.com
Matt