Rails Subscription Site with Recurly
railsapps.github.com
railsapps.github.com
I am using the Stripe version of this app with an app I am building at the moment.
RailsAppComposer has become an integral part of my toolchain. Can't speak highly enough of it.
Comparing Stripe and Recurly: It's faster to get going with Stripe (no merchant account required) but Recurly appears to offer more automated customer retention features (no need to implement webhooks to send dunning emails).