This week's giveaway is in the EJB and other Java EE Technologies forum. We're giving away four copies of EJB 3 in Action and have Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan on-line! See this thread for details.
At least JBuilder (not commercial versions) and WSAD include Struts designers and Struts configuration file editors. The plain Eclipse doesn't support Struts but the commercial package, MyEclipseIDE, includes functionality similar to those of WSAD's/JBuilder's.