I am using PHP and I am considering if switching to RoR would be a good choice for me.

Currently I write procedural code, but I started re-learning OOP and I wonder if this is a good time to switch to RoR.

It seems undisputed that Ruby is better for OOP but I have some concerns:

1. Hosting: I own a managed dedicated server and a couple of reseller hosting accounts. They all come with PHP (cpanel). Will I be able to run RoR sites next to my PHP sites on the same server without much trouble?

2. Are there any equally good open source CMS and forum software for RoR as there are for PHP?