It sounds like you are on the right track.

You might find better information asking at:

http://www.telemarktalk.com/phpBB/

And there is a lot of information here:

http://home.comcast.net/~pinnah/DirtbagPinner/quick-picks.html

Sounds like you want to cover a lot of different terrain and the narrow and longer BC65 would be better on the flat and slightly hilly parts but the wider and shorter BC70 might be better on the hiking trails. I am around your same weight with my weekend pack on and find that I do not get very good glide over flat areas using my 190cm skis but I am still able to cover a lot of distance.

Steep and tight Mountain hiking trails may be difficult on either of these skis and you might need to look at something heavier like telemark gear if that is terrain where you really want to go but would not be something for a novice user.

Always look for comfortable boots first and they will determine what type of binding you will need and to some extent how wide of a ski you can use.

Some boot and ski options to give you some idea of what you might look for:

http://www.mec.ca/Products/product_listing.jsp?FOLDER%3C%3Efolder_id=2534374302725815&bmUID=1228156445021

http://www.mec.ca/Products/product_listing.jsp?FOLDER%3C%3Efolder_id=2534374302726463&bmUID=1228156538854

Another option that you might consider are snowshoes which are slower but much easier to use if you are hauling a pack but you will not cover the same distance in a day.