I've been getting the dreaded WSOD on just the basic install of Drupal 7.26 using MAMP 2.2
And also looked at Blank pages or "white screen of death" (WSOD)
I wasted several hours trying to find the problem. It seems to be related to an issue with PHP 5.5.3 which is the default on MAMP 2.2. I went into MAMP preferences, and changed the PHP tab to use PHP 5.2.17. I then edited /Applications/MAMP/bin/php/php5.2.17/conf/php.ini to add the settings for max_execution_time = 300 and memory_limit = 256M
I went back to MAMP and restarted the servers. Used a fresh copy of drupal-7.26 and the install finally worked (after adding a fresh new db and user in phpMyAdmin on http://'localhost':8888/MAMP/)
I still have no idea why PHP 5.5.3 fails miserably