Now I have my Meopta that is capable of holding 6x6 negs I have decided to grit my teeth, raid the life savings and buy a Holga. While searching ebay I also came across the Horizon panoramic camera. Seen them on here before so i'm sure someone must know the answer to these questions. Is the neg from a horizon wider than 6cm and if so, what size will i need to print from it. And secondly, would I use a 50mm or an 80mm enlarger lens?

I have been looking at these for a while now, too. If Leon doesn't pipe up PM him as he uses one of these on a regular basis.

Pipe Pipe Pipe Pipe ;)

Yes - you can print horizon negs form your meopta 6x6 neg holder - i do it regularly! Only thing, you need a different size lens though, and 80mm would be fine if you dont ever plan to go beyond 6x6, but if you are planning to upgrade your enlarger at any point, try and get a 105mm now as you can print most the 120 formats with that (incase you get the urge to go for a 6x9 folder or something).