Sorry I missed the meetup this week. Stupid flu!
Here are the links that have been sent to me so far:
(free) plugins
http://wordpress.org/plugins/if-menu/
http://wordpress.org/plugins/baw-login-logout-menu/
http://wordpress.org/plugins/wp-bouncer/
http://wordpress.org/plugins/limit-login-attempts/
http://wordpress.org/plugins/dw-admin-block/
(paid) plugins
https://premium.wpmudev.org/project/login-redirect/
https://premium.wpmudev.org/project/logout-redirect/
If you have more links that were talked about at the meetup, please send them over.