I would not recommend doing it in Carrara, unless you want the text to be part of the 3D space. Imagine having to re-render the whole thing because of a typo. Or a client changing his or her mind about the right way to say 'do not, under any circumstance wipe the connector with something that is not made out of sheep'. I think any video editing software is better for that. Or, just use C4Pro (or just buy Vectorstyle), to have 3D and Flash material in one end result. The recent Flash version is easier with (pixel) video material too, so mixing is easier than ever. Without using 'video editing software' you have to learn from scratch. Good luck! Hoof