just to another vote for aolserver other major sites like mapquest and photo.net use it... its fully capable of doing the job i doubt it is worth fretting over the web server itself, its the software you write the runs behind/on top off/underneath/whatever else the web server that really matters... i would run both apache and aolserver if it were me... (on differnt ports if needed, or on different ip's if you have an extra one to spare).