dvd pro isn't easy: it's a real professional tool with gazillion of features, some people explore after years...
as mentioned before: all the grafix & backgrounds have to be produced with a different app, like photoshop etc.
you can even program with dvd pro, probably you have seen "hidden" tracks or "secret" features on commercial dvds - it's all done with dvdpro.-
i believe, if you don't use it on a daily basis, the learning curve is much too high - or you strive after y new career ;-)))
btw: tried dvd3? customized the bg, loops etc?? i'm convinced by the possibilities of this product.