For those interested in learning VMware at home, but do not have licensing and do not want to have to rebuild the environment when the trial expires, you now have a new option. VMUG: EVALExperience
The VMUG subscription costs $200 a year, and one of the benefits is EVALExperience, which allows you to have a trial license that lasts 365 days for 9 VMware products. One of them is vSphere with Enterprise Plus licensing, which will allow you to mess around with the VMware Distributed Switch and 1000V
http://www.vmug.com/p/cm/ld/fid=8792