Bangkok is usually a bit more expensive for electronics than some neighboring countries.

That being said, I have used the i-Studio group in a pinch and it worked out quite well for service.

MBK is fun if you don't mind a gamble as you never know what you are really buying and bargaining is time consuming as well as tough with that group.

This website has a comprehensive list:

http://www.farangfriendly.com/bangko...orized-dealers