The tour price is very good for 4days/3nights but I would suggest paying the extra $25 to get better hotels, especially in Siem Reap where a hotel pool is great to cool off in after a hot day at the temples. Getting there can be cheap by using discount airline Air Asia from Bangkok to Phnom Penh. Return fare will be between $57-79 (depending what day you fly and how far in advance booked) plus airport taxes of $20 and 25. Since the tour does not provide transportation from SR back to PP you could take the bus (best is Mekong Express at $10) Takes around 5hrs over a good road. Don't bother taking the overpriced boat as it takes the same amount of time if not more and is not that comfortable. Before the road was improved and better buses, the boat was the only way to go.