Who said online forms are boring create (and to fill out)?
If you're looking for some inspiration, take a look at the form Bos Advertising created for Ricola. While they gather information from users willing to win a vacation to Switzerland they also deliver branded messages on Ricola's herbs. It's nice to see and apparently pretty effective since a lot of people submitted their data.
We need to remember people want to fill in forms as soon as possible, so you cannot ask for too much of their time just because you want the form to look nice. Of course once again the point is about delivering relevant content. If it isn't relevant it might just become annoying and prevent people from completing the data entry. If it's relevant and nicely presented, then the conversion rates will be more likely to grow.