A couple of really cool

A couple of really cool tools that I've discovered recently... GNS3 is an excellent graphical network simulator. Like visio but the routers run real IOS. It works good with 3640 IOS set at 128MB and don't forget to set the IDLEPC value in the default. Putty Connection Manager Rightmark CPU clock utility. Tweak your CPU to get more batter life or performance.... Process Explorer is a taskmanger. Virtual Box is like VMWare Workstation but FREE.