Why not use the included mini-USB cable?
Another option would be some kind of file manager. I use ES File Explorer. I can navigate over LAN to my laptop / desktop and grab files.
Dropbox is another option. Though you'd first have to send the files to your DB folder on your PC - this does have the added benefit of being able to get to those files anywhere you have a WiFi connection though.
downloading files is much faster over wifi than USB, and there's no performance hit like there is with USB.
I can access my files from anywhere I have a data connection. it was nice the other day to think about an album i wanted to hear and download it over my work wifi
no special folders to setup, you just browse the file structure on your server.
The only real issues I have with it so far are:
I can't set a default download folder on my A500. I'm hoping they fix this.
You have to kill the client to move files from the default download folder to say your external sd card.