I'm a fan of Tom bihn bags www.tombihn.com because they are well made here in the USA.
Some that might fit:
This is a doggie treat bag, but it looks like it may fit our camera with a wrist strap. Or at least as a lens swap bag:
http://www.tombihn.com/accessories/TB2110.html
He also has these messenger bags in small medium and large:
http://www.tombihn.com/messenger_bags/TB0201.html
http://www.tombihn.com/messenger_bags/TB0202.html
http://www.tombihn.com/messenger_bags/TB0203.html
These are designed to fit iPads and MacBooks respectively. Good if you shoot with eye fi cards:
http://www.tombihn.com/messenger_bags/TB0222.html
http://www.tombihn.com/11_macbook_air_bags/TB0221.html
http://www.tombihn.com/messenger_bags/TB0223.html
Waist bag with a lot of mount points that can hold an M.
http://www.tombihn.com/accessories/TB0412.html
Some that might fit:
This is a doggie treat bag, but it looks like it may fit our camera with a wrist strap. Or at least as a lens swap bag:
http://www.tombihn.com/accessories/TB2110.html
He also has these messenger bags in small medium and large:
http://www.tombihn.com/messenger_bags/TB0201.html
http://www.tombihn.com/messenger_bags/TB0202.html
http://www.tombihn.com/messenger_bags/TB0203.html
These are designed to fit iPads and MacBooks respectively. Good if you shoot with eye fi cards:
http://www.tombihn.com/messenger_bags/TB0222.html
http://www.tombihn.com/11_macbook_air_bags/TB0221.html
http://www.tombihn.com/messenger_bags/TB0223.html
Waist bag with a lot of mount points that can hold an M.
http://www.tombihn.com/accessories/TB0412.html