Microsoft have released EMET 5.0 details here. I've been running EMET for quite some time now, it's very unobtrusive and fairly intuitive.  It can also be integrated to good effect with the MS System Center suite. If you're running Windows, install it and make a bad guy's life that little bit harder.

The VMware hardening guide for vSphere 5.5 has been released and is available here: https://www.vmware.com/support/support-resources/hardening-guides.html

Foundstone (who produce a bunch of great free tools) have released VDigger; a new VMWare hardening tool. I haven't had a chance to check it out yet.

Tripwire also have a free product called ConfigCheck that has been out for quite a while now, which I have used and can recommend.

I previously mentioned the VMWare hardening guide here.

VMWare have recently released their vSphere Hardening guide. The blog post about it is here, and the guide can be downloaded directly from here [pdf].

From an inital runthrough, it seems quite comprehensive.