Postgres is easily installed and administered on Windows. See PostgreSQL on Windows for the options you have.
- As of this writing, the apparently easiest choice for PostgreSQL on Windows is "UltraSQL by PeerDirect" mentioned at above link. It is available from here. See the README file enclosed in the download and Installing the PeerDirect PostgreSQL beta for Windows for more instructions. After completing installation, the username for your DB is your windows login name and there is no password.
- You might want to install phpPgSQL in order to admin your database. It will save you frustation at the command line. A more complete list of all known PostgreSQL GUI tools is available at PostgreSQL GUI's
- Go ahead and create your database tables via phpPgSQL or via the command line as described here.