localhost - editing apache vhosts and ubuntu hosts file?

I have just installed ubuntu (11.04).

I have installed apache/mysql/php etc.

I have a few sites sitting in

/var/www/site1
/var/www/site2
/var/www/site3

I want to be able to access these at
http://site1.local
http://site2.local
http://site3.local

So in my hosts file I have
127.0.0.1 site1.local
127.0.0.1 site2.local
127.0.0.1 site3.local

Then I have copied /etc/apache2/sites-available/default 3 times.

so now I have
/etc/apache2/sites-available/site1
/etc/apache2/sites-available/site2
/etc/apache2/sites-available/site3

These all look like (with appropriate sitex names)

    ServerAdmin webmaster@localhost


    DocumentRoot /var/www/site1
    
        Options FollowSymLinks
        AllowOverride None
    
    
        Options Indexes FollowSymLinks MultiViews
        AllowOverride None
        Order allow,deny

        allow from all
    

    ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
    
        AllowOverride None
        Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
        Order allow,deny
        Allow from all
    


    ErrorLog ${APACHE_LOG_DIR}/error.log

    # Possible values include: debug, info, notice, warn, error, crit,
    # alert, emerg.
    LogLevel warn

    CustomLog ${APACHE_LOG_DIR}/access.log combined

    Alias /doc/ "/usr/share/doc/"

    
        Options Indexes MultiViews FollowSymLinks
        AllowOverride None
        Order deny,allow
        Deny from all
        Allow from 127.0.0.0/255.0.0.0 ::1/128
    

In the terminal I then call

sudo a2ensite site1 site2 site3 && sudo /etc/init.d/apache2 reload

Which seems to work,
except only one of the vhosts works at the same time (including default),
What am I doing wrong?

---

When I run the reload command I get

• Reloading web server config apache2
  apache2: Could not reliably determine the server's fully qualified domain name,
  using 127.0.1.1 for ServerName
  [Fri Apr 15 10:45:27 2011] [warn]
  NameVirtualHost *:80 has no
  VirtualHosts