I'm doing what your doing. Look at least twice a week for openings. Postings only last about 5 days on the market. They come and go quick. I got very lucky a posting opened up in the district I wanted, just waiting to hear back. Be proactive, call or show up to a couple offices and meet with the PM to see if they would take a transfer. Even though I applied for one position, I'm still going to ask the other offices. The chances on getting the one position are very slim and can't rely on that.
Best of luck in your endeavours.