Freeware: Esx

SolarWinds Free VM Console 1.0A desktop tool to bounce virtual machines without logging into vCenter or vSphere. Get end-to-end visibility into your VMware environment - from vCenter through Esx hosts to VM guests. Track the real-time up/down status of VMs.

ManageEngine VM Health Monitor 1.0ManageEngine VM Health Monitor tool monitors Esx / ESXi, as a desktop tool dashboard. It shows the actual resource utilization of the virtual servers along with CPU and memory utilization for each guest OS on the Esx / ESXi server.

SearchMyVM Appliance 2.0SearchMyVM, a free utility, allows you to pick from a list of pre-built queries or use the query builder to get the specific information you are searching for.