I actually had a different model, that had a breakout box, and a PCI card that went into tne computer. After I bought the all in wonder, I no longer needed it, so off to ebay it went.
I have to tell you, movie star is a nice simple interface, and is quite good for what you are doing.
The all in wonder was purchased not only for the capturing, but for the tv tuner, tivo like PVR, and because it is a great 3D card as well. The capturing is superb, IMHO, and I would never go back.
You can still use movie star withthe files captured from the all in wonder too. I like the fact that I can capture in native DVD resolution, and set the bitrate properlly so no reencoding is needed. I can just drop the files straight into My DVD and author them.
You are evidently doing quite a bit of editing, and movie star will serve your purpose for that. I am fortunate enough to own Adobe Premiere, which is the end all of video editors, so thats what I use now.