Drupal site just sits there loading and eventually times out? Check sites/default/settings.php. In particular, you may be loading stuff that will slow you down/bring your site to a halt. For instance, try commenting out:
$conf[‘cache_backends‘][] = ‘sites/all/modules/memcache_storage/memcache_storage.inc‘;
$conf[‘cache_default_class‘] = ‘MemcacheStorage‘;
$conf[‘cache_class_cache_form‘] = ‘DrupalDatabaseCache‘;
$conf[‘cache_backends‘][] = “sites/all/modules/memcache/memcache.inc“;
$conf[‘cache_default_class‘] = ‘MemCacheDrupal‘;
$conf[‘cache_class_cache_form‘] = ‘DrupalDatabaseCache‘;
Or any one that pertains to caching.