I also have the 6600 and before I bought it I joined the Janone 6500, 6600 and 7700 Yahoo message board. It is a life saver and will answer any question you could possibly come up with. Also loads of tips and neat things you can do with the machine--
Good luck and enjoy your machine. Oh yes, do keep a notebook with samples attached and all your notes. I use mine more than my book that came with the Janome---If you have any questions feel free to email me, :)