I've looked all over the place and have found only crappy ones.

I'm actually taking a membership list and putting it on the web, and the only way I could figure to do it was with a directory script, although I'd appreciate input if there is a better way.

Anyone know a good software to do this?

Best I managed to find was directorypress.net when I looked a while back.  It's fairly clever, but to be honest you might as well use a standalone directory and forget  the wordpress part as it rather takes over everything.

What about something like this:

http://wordpress.org/extend/plugins/members-list/

or something like this:
http://wordpress.org/extend/plugins/custom-post-type-ui/
or
http://wordpress.stackexchange.com/questions/381/implementing-a-crunchbase-com-clone-using-wordpress

http://directorypress.net/

drupal.org

Business Directory Plugin was just purchased by a new developer who is actually making some sweet improvements to it.  And, he gets back to support emails in a few days.  (OK, he could improve on that)..

Really though, the plugin itself is good.  I tested the beta for him.  Nice for those people who want to make an actual non-spam directory.  (also good for those who do...)

http://businessdirectoryplugin.com/