I store all my music on my ipod, in folders... for example:

I:\Albums
I:\Singles
I:\Digital Downloads

The easiest way to add tunes to my SSL library in this situation is to copy, say, my 3 new albums to the I:\Albums folder, and then just drag the entire Albums folder into the library, and SSL will detect that the 3 new ones that I just copied in there are the only 3 that aren't in the library already, and add all the tracks... Easy!!!

EXCEPT that tracks from all 3 albums will be added in a totally random order, so that if you sort the library by the "added" field, the tracks are all over the shop...

It would be great to have SSL be a bit smarter when batch importing like this... adding 1 subfolder at a time, possibly in order of "Date Modified" in Windows/OSX, would be a lot better... this would ensure that when you sort by date added, each subfolder (i.e. each album, or EP, etc) is listed one after the other :D