The Elmo 16-CL is nice, but check the status of the rubber rollers, they have mostly turned to goo. Replacement is expensive. Also, the take-up belt often needs replacement. And then there's the non-standard lens, a good zoomlens will cost as much as the projector, if you can find one. You can screw the right anamorphic lens on the base lens, so no adaptor needed. But once you have all the parts, you have a nice projector, I admit. I don't know if there are models with line out, mine hasn't.
Eiki's are easier, parts and lenses more available, but I never really got into them. But I wouldn't mind a nice SSL.
2 on ebay Germany right now:http://cgi.ebay.de/Eiki-Slim-line-16-mm ... 4ceda1ebadhttp://cgi.ebay.de/EIKI-SSL-2-Film-Ton- ... 439d5041a8
And don't forget the Bauers of course! A P7 or P8 is a pleasure to run, and they are plentiful.http://cgi.ebay.de/16mm-Filmprojektor-B ... 35a6ee0192http://cgi.ebay.de/Schmalfilmprojektor- ... 3ca9fbb27c
Personally I would not pay more than 150 Euro for any 16mm halogen projector.
My choice is Hokushin/Apollo, especially the SC-210 model, but maybe not easy to find.http://web.uvic.ca/~uvicav/instructions ... jector.htm
At the moment I prefer my Elmo 16-F, see the fav projectors topic.
But like Fabricio says, why not go for a Fumeo?
You will love 16mm Gian, you will just need more space to store your movies