Season 3 Cast Promo Photos and Episode 1 stills
Tons of new cast photos under General and new stills from Episode 301. Few from other episodes, too. But if you're following the UK run and/or not seen episodes, be wary of spoilers for those episodes, minor as they are. And for episode 301 too.
http://www.farfarawaysite.com/section/themusketeers/gallery3/gallery.htm