
Well we took the bus from Bangkok to Siam Riep , against some advisory - Its long, its dusty, its bumpy, they rip you off for your visa at the border, you have no chioce of where you stay when you get there... blah blah blah. Heres a how to guide to the journey.
Pre organise your Cambodia Visa (3 day wait). Pay at TAT travel agency. Not TAT licensed agents, actual TAT places. Pay here and its cheaper than taking a taxi to the Cambodia Embassy and back to do it yourself.
Pre book a guest house based on a recomendation if you can, or a guide book.
Have US dollars on you for a couple of weeks. Ignore touts telling you to get cash at the border town. And dont worry, ATMs are in every reasonably sized town in Cambodia.
Buy a bus ticket all the way to Siam Riep (2 buses). Get on the bus. The ride to the border is fast. Satasfaction also comes from watching everybody else on the bus pay heaps on board for a visa "to avoid the queues at the border".
At the intimidatingly different border, even though you have paid all the way to Siam Riep already, they do their best to convince you the new bus will be so miserable, slow and non airconditioned that you should pay for a taxi. (They get additional commission for this). We waited half the time they said we would have to wait for the Cambodian bus, got on it and had an amazing journey through the Cambodian countryside. The road is half improved now, and the scenery is breathtaking. You watch the sun set. They stop for dinner. The windows keep the bus cooler than most 'airconditioned' buses we have been on.
expansive emerald rice paddies set against rich deep and towering monsoon skies.

Cambodia is incredible. It is exhausting. It is dusty, but simultaneously so so green and lush. Its uncomfortable, then suddenly as comfortable as you would be at a cafe on cuba street! Its a real experience, very rewarding, we have had few days where we havnt been blown away. I hope the photos can get some of that across.