Re: Should I learn RoR ?
there's the free http://www.buildingwebapps.com/learningrails website that has video presentations and uses Rails 2.0.2 . I'm enjoying it as it gets you up to speed faster than just reading. If you're keen on trying it, these tutorials will let you know if Rails has the right potential for your needs.
Rails can't do everything, but in understanding Rails it helps considerations in framework design in nice digestable chunks.