Big +1 on movers. We started by having them do just the big stuff handful of (local) moves ago, but the last two have been over a greater distance, so we had them do everything. Money very, very well spent.
For you guys who have paid someone to pack the boxes, what's the premium like compared to just having them move stuff? I kicked around the idea of having them pack boxes during the recent move, but I never committed enough to really look into it.