New Project ... Question re: Diving into RoR or Staying with CFML

Hi -

I've done well building web-based applications with Cold Fusion as my app-server of choice for the past 8 years (have mainly used MSSQL as db, but have switched to MySQL). I have a new project that I'm planning to program with CFusion, though I'm considering RoR as I want to add another "tool to my belt", so to speak - and RoR looks quite impressive. Some of the core admin-side functionality will include uploading pictures & audio that are named in accordance with the individual person's record & some layouts so the content is layed out in 1 of 3 formats (administrator's choice). On the client-side, the pictures & audio will play when logged on as the specified person. (Their's a lot more such as email, user management & authentication, & standard reports). Can this type of application be programmed relatively easy & fast by someone with programming experience in another language, but only a cursory view / minimal testing of Ruby & the RoR framework? (I've recently bought "Agile Web Development with Rails, v2", "Rails Recipes", and "Ruby for Rails" but time ... not been my friend w/regard to sitting down & digging into the books, and have considered subscribing to the RoR Screencasts too (most of my testing with RoR has been with simple app tutorials obtained from the Web).

Thoughts or advise?

Thanks, Dakota