Hi Mike,
A great site is the Pete Coleman site. It's more focused on the 1/100 Airfix-Heller kit, but thats not a problem. I'd really recommend you go there and look though it.
http://www.pete-coleman.com/forum/
Mine is "Bill's".
Two good books, start with McKay's Anatomy of the Ship: 100- gun ship Victory.
Longridge's The Anatomy of Nelsons Ships is useful to a modeler, and some editions have great drawings by George Campbell bound in. This is kind of a nostalgia thing though, I'd not make it a priority.
By all means go see her, I envy you. I understand (?) that they may sell Campbells drawings at the gift shop, that would be ideal. If they do, and you buy them, be aware that they may be reproduced out of scale, and in any case get them printed to your scale.