Ok, so we just freed up over 1500 usernames that were tied to purged accounts that are now available to rename.
Here is a link to a list of the usernames that was freed. They are available via rename token on a first come first serve basis. This list will not be updated, so make sure the name you want is still available before you buy a token for it.
Also we are very temporarily lowing the cost of rename tokens to $3. Remember rename tokens never expire so stock up!
And if you weren't aware of it, there is a tool that you can use to search for available purged usernames at http://www.insanejournal.com/purged_use
FYI We are ending the rename sale at 5PM EDT (GMT -0400) today.