I like Parkside Orchids (parksideorchids.com/shopping.htm), however, it doesn't appear that they sell phrags anymore.
Parkside Orchids supposedly will be that National Capitol Orchid Society show and sale, along with Woodstream Orchids, J&L and Fishing Creek Orchids (the website doesn't show him selling, but Stephen Male is doing a presentation). Hopefully there'll be an update of vendors soon. The show is Columbus Day weekend in Oct (
The National Capital Orchid Society | Fall Show).
If you can wait until February 2012, you'll want to check out the "Paph Forum" which is in the DC area. Slipper (Paph and Phrag) fanatics from across the east coast come for the show, talks and sales. Here's info from the previous forum:
The National Capital Orchid Society | Paph Forum