Fly SGN - REP - Vietnam Air $123. REP - PNH, take the bus ($10). Roads are pretty good now. Fast boat down Ton Le Sap to PP is a bit of a rip now ($35), but fun. It was $15 last time I took it. Sit on the roof if it's not raining. These guys are a good source for Cambo: http://www.talesofasia.com/cambodia-...-guide-get.htm and http://www.canbypublications.com/