Both Rails and Django have lively helpful communities with great documentation and extensive libraries.
You could even play with both over a few hours and pick the one that has the style you prefer.
What was the issue you had with ORMs?
Language wise - I like being able to keep stuff 'typed' once the code base stabilizes a bit. Steve Yegge apart ;)
ORM - major issue has been migrations with .NET stuff.
What has been your/community's experience with migrations?
I am assuming that Ruby => Rails and Python => Django (Please correct me)
Even if that wasn't what hartror meant, you probably should still give this some consideration.
I have mostly scripted in Python and some in Ruby (for some existing codebase). Not anything significant.