Hi, I'm planning on writing a simple web application that will be used by lots of users (as complicated as a simple bookmarking app) and I'm trying to decide which framework/language to use. I'm very experienced with Spring/Hibernate and Java in general but new to both Grails and RoR (and Spring ROO). The only reason I'm considering RoR is because Java hosting is MUCH more expensive than RoR hosting (which is supported by almost any hosting vendor for 5$ per month). Assuming the price wasn't an issue, which one of the frameworks/languages mentioned above would you recommend for a Java developer (who knows how to configure Spring/Hibernate etc.)? I'm afraid that by using RoR I won't be able to easily support many users who are using the website at the same time. thanks