してみた。
/etc/apt/sources.list はこんなかんじに。
deb http://security.debian.org/ wheezy/updates main contrib
deb-src http://security.debian.org/ wheezy/updates main contribdeb http://ftp.jp.debian.org/debian/ wheezy main contrib non-free
deb-src http://ftp.jp.debian.org/debian/ wheezy main contrib non-free#software
#debian-multimedia
deb http://www.debian-multimedia.org wheezy main non-free#opera
#deb http://deb.opera.com/opera/ squeeze non-free
deb http://deb.opera.com/opera/ stable non-free #Opera Browser (final releases)# Google software repository
deb http://dl.google.com/linux/deb/ stable non-free
