FTP Access to /var/www/

I’m trying to set up an ftp server, but I’m having a bit of a problem. What I want to be able to do is only have one account (mine) so that I can edit files when I’m on the road. It’s a personal server, so security is of little concern. I just want to be able to log in and upload/edit/delete files from /var/www (Apache’s root directory, where my external HDD on windows is smbmnt’ed to)

The problems I’m having are that:
/var/www/ is owned by root and I can’t change the permissions on it apparently…
and
I can’t figure out how to get any ftp server to allow access to /var/www/ and only /var/www/ (plus giving it read/write access)

Thanks.
Btw, I’m running Kubuntu.