A Ruby template engine is Kwartz (www.kuwata-lab.com/kwartz/). Esp. for Mac OS X there seems to be Tempura (www.fobj.com/software.html, but also see rubyforge.org/projects/pagetemplate/ and such projects as wee or hobix). For a FastCGI tool see www.moonwolf.com/ruby/archive/ and in general wiki.rubyonrails.com/rails/show/FastCGI. For some books on Ruby see www.pragmaticprogrammer.com. A good Tiger installation guide btw can be found at jamie.blogthing.com!