We made this video a few days ago and I figured I'd put it up here for you guys. If you've never heard of sysstat/kSar, it's basically a way to view all of your system resources (cpu load, ram, data transfer, etc) via a nice little desktop application in graphs.
YouTube - ZenSix Hosting: How to use kSar to monitor your VPS resource usage
(watch in HD for a better view)
YouTube - ZenSix Hosting: How to use kSar to monitor your VPS resource usage
(watch in HD for a better view)