I have been looking at
Ruby on Rails the last few days and am pretty impressed. there are a few good tutorials at the
O'Reilly OnLAMP site. the framework really speeds up development. if you are looking for fairly light duty web applications and fast easy development, check it out.
I have done web programming in php, perl, c, c++, asp.net (c#), j2ee, and vbscript. I am very impressed with ruby on rails and am starting to work on an ecommerce application with it.