You guys are gonna be all over SE Asia and skipping Cambodia would be a big mistake. You MUST go to Siem Reap to see the Temples of Angkor. Cambodia is a great country and the people are very friendly. Travel there is definitely rough...the roads are terrible, it is really dusty, and you will sweat a lot. Along with this, it sort of feels dangerous to be there, given the country's history...but that makes it more fun. I didn't go to Myanmar, but it seems like it would be the same way. In order to really appreciate it, you must book a 2 or 3 day tour of the temples. You can hire moto drivers through your hostel, or guesthouse, as they are called, to drive you around and explain the ruins. The complex is huge and it is hard to comprehend it all, muchless take enough pictures. The town of Siem Reap is nice and there are a bars and restaurants to entertain at night. There is even a local pizza restaurant that uses special herbs and spices...I think it is called Happy Pizza. Other musts include the landmine museum and the tribute sites to those who lost their lives under the rule of Pol Pot. You will see a lot of people who have lost limbs due to landmines begging for money, and it is hard to tell them no. I found other places throughout Cambodia to be interesting as well, but you have to see the Temples of Angkor.

Laos is a cool and cheap country to travel. Going from northern Thailand to northern Laos (Luang Prabang), one must travel by boat down the Mekong. It is a 2 day trip downriver on a slow boat with hard wooden benches. You can opt to take the fast boat but it looks really dangerous. The scenery along the way is mountainous, tropical, and desolate. Luang Prabang is a cool city with a lot of French influence. They still sell baguettes on the streets, which is odd, since bread is not common in Asian countries. The local beer is Beer Lao and it is decent. Accomodation is about $2 and up per night, depending on how nice you want it to be.