recently made the crossing by bus from ho chi minh to phnom penh.
it was very easy. i got a bus ticket from the hostel reception for US$14.00. the bus company, Mekong Express sent a shuttle to pick me up from the hostel and transferred to the air cond coach waiting nearby. baggage was tagged before loaded into the bus storage compartment below. while on board i was served with a bottle of drinking water and a decent pack of bun/sandwich . the bus has an onboard english speaking guide who assist the passengers through the border check points. all were conducted in a delightful manner. it took about five hours to reach phnom penh city centre. from there it was easy to get a tuk tuk to the hotel.Edited: 10:11 am, January 13, 2013