exactly, you don't want to do them all with a different "easy" tool. For me, I use ruby and rails for sites, and ruby for scripting everything. Basically, ruby is my core tool. I manage my entire system with apt-get except for ruby, where I use rvm. It's worked really well for me.

Or, at work it's basically the same thing but with java and maven to manage java stuff. Java's had a similar history of butting heads with package management systems.