I would definitely look at getting the site listed on V7N's directory.
It isn't a free directory, but well worth the fee.
directory.v7n.com/
You can also find a ton of directories that you can submit to here --
www.v7n.com/forums/directory-announcements-promotions/
P.S. I wouldn't stick my nose up at new quality directories. Today's PR0's are likely to be tomorrow's PR6's.
