Through the new Google Blog Search, I found a couple of reports of the recent USC filming. There aren't any real spoilers:
"There was a full motorcade (Ohio plates) and they had changed the sign to read "Braeburn College" (most likely a re-shoot for the first episode of season 7) And there was a big crowd of extras waving signs like "We LOVE Bartlett" and "Santos McGarry For a Brighter America," while chanting "Santos! Santos! Santos!" And, lo and behold, Jimmy Schmitts was right in front of us, looking at a script. And JOSH LYMAN (Bradley Whitford) wandered by twice. And I was absolutely taken with excitement. We watched them do several takes of an arrival scene before they packed up and headed inside Bovard."
"My time here at USC is about to end. I can't wait to get back home, though this was pretty cool.
I met Jimmy Smits (bail organa from Star Wars) and Bradley Whitford (the villain from Billy Madison) today. They were shooting the West Wing."
"I had the best day today. literally. it was my favorite day.
i met bradley whitford and got to watch them film the west wing while wearing a headset.
i was so excited i was shaking and couldnt stop smiling for hours.
it was a big deal.
JOSH WAS BEAUTIFUL. you might not care, but he was even better looking in person. and i met christopher misiano, a director and executive producer who was really really cool.
i'll be able to tell you the WHOLE thing in a few weeks at school!!!
a family friend coordinates the shooting of shows at USC and she got me backstage! it was so cool!"