if you want to try the LEGAL (not leaked) version of vmware workstation rel 7.0 here's the OFFICIAL link not sure how long the key lasts for but should be for a decent period. It's also FULL (not feature restricted) version. Free for the moment.
Like WZOR says - supports Windows 7 aero on Windows 7 guests etc -- worth a play with if you've time. VMware Communities: VMware Workstation Release Candidate - October 2009