Getting Started: Dreamweaver or jQuery

Getting Started: Dreamweaver or jQuery

Background: hand coded a thousand (or so) web pages since the early 90's. Always avoided WYSIWYG packages (FrontPage left a bad taste in my mouth).  But now, things are getting much more complicated, and I have been looking at Dreamweaver CS4.  I am taking some on-line Dreamweaver CS4 tutorials.  I just heard about jQuery this morning.  My objective is for my websites to work in multiple platforms with the least number of CSS hacks that I usually don't understand -- and don't trust to survive future browser editions.  Also, hacking out new designs is just getting too complicated; thus, the attraction of Dreamweaver CS4.

Questions:
  1. Is jQuery compatible with Dreamweaver's own JavaScript library?  Can they coexist?
  2. Would I be better served to continue with my Dreamweaver tutorials, and then incorporate jQueary when I find something missing in Dreamweaver?
  3. Anyone have experience with the book "jQuery: Novice to Ninja" (Sitepoint)?
Thanks !!