Attached Link: http://www.zonelabs.com/store/content/catalog/products/bundles/bundle_details.jsp

I just purchased System Mechanic 7 a couple of days ago from ZoneLabs, the same company that makes Registry Mechanic. On their website I only see it bundled with ZoneAlarm, but I got an email newsletter offering it seperately for 19.95. The software seems to work pretty well. It performs a lot more functions besides the registry also. 

It's listed on this page under the Featured Bundle.