I'm in two minds as to what to do with this site. The only reason I ended up with www.0gravity.co.uk/wordpress was because I was testing the site out at the time and as such just extracted Wordpress into that folder and well forgot to move it out again :) I really would prefer to have it stuck at the root.
So these tutorials might be useful for getting the correct .htaccess to allow any requests that were directed to /wordpress to go to /
Hopefully those links will be of use to some other people as well.
 Thanks to the #wordpress IRC room I've been told that this *RewriteRule ^wordpress/(.) http://www.0gravity.co.uk/$1 [L,R=301]** is the rewrite rule that I'd need.