Just thought I'd take the time to learn Ruby and possibly Ruby on Rails. I've been doing ColdFusion for years at work and pretty much hate it at this point. I've also done some work in ASP.NET (C# and VB.NET), PHP, WebDNA, and some Python (Django).
Ruby isn't bad so far. I'm hoping to be able to start on Rails in a few days. The only thing I'm not looking forward to with Rails is Prototype. I'm a much bigger fan of jQuery, however it looks like there may be a plugin for Rails that will replace the automated stuff it does currently with Prototype.