Reach by cheap bus (US10 or so) from Ho Chi Minh. City has shopping, tourist attractions, Russian Market, backpacker scene. NOTE Possiblity of reaching Phnom Penh via Mekong. Ho Chi Minh to Can Tho and then up the Mekong to Chau Doc. Chau Doc to Phnom Penh via minibus or taxi. Once in Phnom Penh we can go to Sihanoukville (and Ream National Park), coastal resort, for a few days.
Trains leave from Phnom Penh to Battabang at 6.20am on Saturdays. Last trains in the world where you can sit on top and in freight carriages. May be out of service in 2010.
Can be reached by boat from Battambang for about US10-15. Backpacker scene and largest temple complex in the world. Passes cost 20-40USD. Return to Phnom Penh for bus ride to Kratie