Searching for CS3

Hi,
Does anyone know where I can find a CS3 version (standard) of Adobe Photoshop? It's been replaced by CS4 and discontinued at places like BH Photo. I've been using CS for years, so CS3 would be more than sufficient.
Thanks
Does anyone know where I can find a CS3 version (standard) of Adobe Photoshop? It's been replaced by CS4 and discontinued at places like BH Photo. I've been using CS for years, so CS3 would be more than sufficient.
Thanks