Yep, the 151st guys have been home for a bit now. Buddy of mine in flight school is assigned to the 151st, and apparently they're keeping their grays for now. As for the sand yellow ones, I haven't heard anything on recent ones. If you've got pics, Andy, shoot some this way! As far as I know, none of OUR AH-64s are painted sand yellow. The Israeli Sarafs are primarily, but there are plenty of differences between a standard D and a Saraf. I'm definitely intrigued!
By the way, the pic that Gino posted is 94-0332, the same bird in my sig and that's profiled in my book. They were based out of Mosul, but I've had several guys tell me they were flying out of Balad as well. Most likely they sent a team or possibly a platoon down to Anaconda for better mission coverage.