Pervasive "500:Server Error" – After Uninstall

Hello team,

I am running two sites that I was hoping to speedup using WP-Super Cache. I installed the program, activated it, and then my sites started to hang…

Now both sites are down with 500 internal server errors. Naturally, my first impulse was to remove the plugin files and access rules as spelled out in the Unistall faqs on the plugin. I followed the instructions to a T (editing htaccess and wpconfig as well as removing all plugin files) and I still have non-functioning sites…

I was able to pull a wp-admin site once, but not any longer. Any suggestions on how to fix this issue?

I am pulling error logs now and will re-post if/when they are compiled.

http://wordpress.org/extend/plugins/wp-super-cache/