After watching the demonstrations of Ruby on Rails on the Ruby on Rails website and working my way through the ONLamp examples, i'd really like to learn Ruby on Rails. I was wondering, does Agile Web Development with Rails cover enough Ruby to get one started with Rails, or would I be better off purchasing a book on Ruby to go along with it (Programming Ruby: The Pragmatic Programmers' Guide perhaps?)? I've read all of the reviews on Amazon, Googled numerous reviews, and checked out the manufacturer's website, but I still haven't been able to come to a conclusion. If it helps, I know and work with CSS, JavaScript, MySQL, PHP, and XHTML on a daily basis (I do realise none of the aforementioned are similar to Ruby or the Rails framework.). Thanks a lot for any information, it is appreciated.