Can anyone help me plan a trip to Thailand?

16 days is a bit short for such an ambitious plan...you will most likely fall in love with thailand and south east asia in general and will return so I would suggest pacing yourself.Most travel in thailand uses bangkok as a hub.For instance you will probably go chiang mai/bangkok/phuket not CM/PKT.If you really wish to see so many places you will be in the air or on a bus for most of those 16 days...thailand is a pretty big place.Do thailand this trip and vietnam next time.I would definitely do bangkok first(2-3 days) chiang mai same,back to pattaya (beach/fleshpot) near bangkok for few days before bussing to koh samui for most of the remainder leaving a night or two in bangkok for your return.........either that find a girlie bar in soi cowboy,fall in lust and don't move for the rest of your natural