Proper .htaccess setup?

It looks like our site needs some work on our .htaccess file as we are having some canonicalization issues. I see some suggestions on the forum but I want to know if anyone has something better than this or will it do the trick?

RewriteEngine On

RewriteCond %{HTTP_HOST} !^www\.example\.com$ [NC]
RewriteRule .? http://www.example.com%{REQUEST_URI} [R=301,L]

Thanks!

Hi there,
Am I right in thinking you want to force the http:// in with the domain? Our usual problem with client sites is the non www domain issue in which we use:

RewriteEngine On
RewriteCond %{HTTP_HOST} ^domain.co.uk
RewriteRule (.*) http://www.domain.co.uk/$1 [R=301,L]

Regarding canonical links I have used the following link suggested here by Jonathan which has always seemed to work fine for us.