I found plenty of people out there who have had this problem, where you try to install a new plug in and it asks you to enter your FTP credentials and says, "To perform the requested action, connection information is required." Well, here's what I did to fix it. I added the following to wp-config.php:
define('FS_METHOD', 'direct');
I had already set my permissions correctly so this fixed the problem for me.
Sheesh!