I've got a great setup when it comes to backing up the photos I take with my iPhone. They are synced to iCloud with Photostream, and then iCloud pushes them down to my PC. My PC runs a job in the middle of the night to backup this folder offsite, and all of this requires very little maintenance or thought.
However, we recently got an iPad for my wife and I'd like to add her Photostream into the mix. I want Photostreams from both devices to end up on my PC eventually so they can be backed up. The part I have not figured out yet is how to push Photostreams from two separate iCloud accounts to the same PC. We use the same account for App Store purchases, but we have different accounts for everything else and we'd like to keep it that way. Does anyone have any thoughts?