Have you actually spoken to your butcher re the casings? Also the abatoirs should sell them.
We started with a family mincer/sausage maker to get the feel for things which cost us 99 euros.
Having used it for a while now, it has become obvious that we need something a little bit more gutsy. Ebay is a good place to start I think just to give you an idea of what is out there. I think dear Hugh say that a good one for regular use - semi prof. is a good investment at around £300 so for us, around 400 euros. Our purse wont strech that far at the moment, and my little one is doing just fine, but we have been looking around for second hand butchering equipment - shops that upgrade etc. That is also an avenue to explore.
Re cook books, I cannot comment on the book you have listed, but if you have looked in the 'Library section' I contacted the Austrians , and they said that they sell a recipe book of Hungarian cuisine, which includes sausages, salami's and hams. It is priced at 20 euros plus postage, and they do an English version.
Hope this helps a little - I am sure others will have more info as well.
Kate

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Glad to be here and enjoying it!