In VMware ESXi 4.0 you needed a small a trick to activated SSH on your Host. In VMware ESXi 4.1 its very easy to activate SSH.
- Press F2 to Customize System Settings
- Navigate to Troubleshooting Options
- Now you can enable Remote Tech Support (SSH)
And by the way, installing ESXi in VMware Fusion on my Mac is really awesome for presentation and testing.
Here is a link how you do this with VMware ESXi 4.0