I would point out that that Murach's book is basically for beginners. It will walk you through step by step covering all the basics using a e-commerce example. See the table of contents for more info.
The Wrox book you mention is one from the "Professional" series. Which means it is geared torwards advanced topics and maybe should be considered after the Murach book.
I currently have beginning
JSP 2.0 by Wrox and would reccommend it to someone new to JSP but not new to programming or web development.
Sal