Our webhost will set up WPMU on LINUX VPS with CentOS 5/Plesk/20gb/512mb ram.
They say they haven't done it with WPMU before.
Any tips/reminders specific to WPMU installation would be much appreciated.
Also, there are three choices for databases: phpMyAdmin, MySQL 5, PostgreSQL server.
Which one is most suitable for WPMU? Should we ask for Multi-DB?