Website Hosting Control Panel for VPS

Hi,
As I am new to VPS world, I was wondering if there is any website hosting Control Panel for VPS. Later on, I found many of them. At first, I tried out Kloxo (Maybe the most used of all). It was nice to handle but the graphical interface was not so great. Then, this curiosity increased in me and now though my exam is going on :P I'm trying new panels day after day. Today, installed zPanelCP, it's graphical interface is awesome but I saw I'm limited to use 5 domains in it. Is it really limited or I can't find out something ?? If it isn't limited, I will love to work with it !