You know it really depends, no matter what is going on, if your going to a studio or if your just trying to get representation, always do what you feel is most "you". If you want an agency to chase you down, that generally will not happen until your in demand. (in which case EVERYBODY will) Following up is the key, but there is a fine line that has to be walked between following up and just being plain annoying. I think that the package that your sending looks to be a really good comprehensive package of who you are. As long as "YOU" is what the core of your package is about, you will get representation when someone is ready to give you a shot. Going back to that Hollywood Cliché "Right Place at the Right Time" (sound familiar) I hate clichés
When getting an agent the most important thing that a client can bring in is Momentum. This is momentum that is created by the client believe it or not. It is not easy to get a production company to take a chance on someone they don't know BUT if you have other people who are using you, or your fresh off a feature, or better yet, just about to get one. That is your strongest time. This may come as a surprise to you but EVERY agency wants to make money. So if there is someone that you want to represent you, more often than not they will not turn you away if you represent a positive cash proposition. This is of course on a case by case basis, but that is by and large the truth.
If you have buttons on your DVD package that gives the person be them Agent, or Producer, make it easy for them to zone in on what they are looking for. If you have a short that people seem to respond really well to, give it a button, maybe have some reviews of the short scrolling next to the button to play after you click on the SHORT subcatagory. (I hope that makes sense) I have a guy that I know wrote a fake review of his DOC, because it went to the BBC they had no idea anyways because it was a local paper. They wound up getting about $250,000 people want to know that other people dig your stuff.
Does that answer what you were asking?
Take care, and good luck,
MS