as probably the most lay person reading these forums I found that yes, paypal to morpheus was my first step into the game. But since I was impatient a simple email to Mark at mtgox gave me the information to wire him some money and I was able to do it online in a matter of minutes. It was incredibly easy. The difficulty to me lies in trying to get smaller amounts of USD out of mtgox since you have to go through LR and that is somewhat of a hassle. Unless of course you are moving sums over $800 which is easy because you can get a direct wire from mtgox.
Having a way to automatically set up ACH transfers would be so much more useful for medium transfers. With neteller, I gave them my routing and bank account number, they would confirm my account, and I could send money in and out super easy.
However, you are going to need to do this through a US bank, and then have to worry about all those regulations.
mtgox allows for ACH pushes, but an ACH pull would be pretty damn good to have. My banks don't support ACH pushes, so I'm opening a new account just for this.