Thanks to Achaosofkitten's co-worker and co-worker's husband, we got a lot of cleanup done today. The front pasture gate has been cleared completely. The interior pasture gate has been cleared, and most of those two trees removed as well. The power company should have no difficulty getting through their right-of-way when they finally get this far.
If you want to see all the progress, I've updated the entire Picasa photo roll
with more recent photos of disassembled trees at the end.