Although I've got CS6, Vegas 12, MC5 as well as Edius on my system, I still revert to and use Liquid 7 on a regular basis. In short, IMHO, there has been, and there is nothing like it available.
I've been working with a client on a ongoing project which covers over 600 bird species in North America for the past 10 years. I set him up with LE7 system early on for many reasons but the main reason being is that there is simply no other program that can handle the asset and project management as well as Liquid. It knows where everything is, all of time. Backup and recovery are spot on and it has by far the best incorporated and integrated DVD authoring tool available where you can set up several menus, each consisting of several pages and sub menus.
I wish that even just one of the newer programs I own would come close. Sure they're great, sold and flexible but simply put, they're not Liquid.
BTW... hi to everyone. It's been a while.
Andy