Ian,
If you go to the product information web page below...
http://www.pgmusic.com/bbwin.packages.htm... and have a look at the EverythingPak, the symbols for USB hard drive and/or download indicate that it is available as one or the other or both (see image below). The hard drive usually costs a little more but is worth it in my opinion. If you decide to go with the USB hard drive version, it will be delivered very quickly. (Here in Australia, I usually get it from Canada in less that 1 week.)
Also, if you decide to purchase the USB hard driver version, you'll be given the option to download it free of charge as well. (This is at least how I understand it from what people have said on the forums. To get the full information, send an email to sales@pgmusic.com and ask.)
Lastly, if you get the USB drive version, you may be up for import duty/taxes depending on which country you live in. You should check this out so that you are not suprised.