I am also planning on a solo trip which is basically my very first trip on my own so I wanna be extra careful. I am planning to go to thailand in december 2nd week . And if u plan for nightlife which I am also planning go to these sites mentioned below. For tropical places Phuket is nice.
http://www.thailandqa.com go to the forums which is helpful
http://bangkokgigguide.com/ and
http://www.hotelthailand.com/bkk_night/
These two will help u for getting the places and stuff like the clubs and all
http://www.passionasia.com/Bangkok_hotels.cfm
go to this one where u can click on live chat with an agent who will help u out ask away ur questions.
U can go to places like patpong and stuff though most thailand u will see the guys land(if u know what I mean
) but yet it's a good place to go. Only be sure not to get ripped off or anything which I heard ppl get like example like the auto rickshaw called a tuk tuk where u might tell them to go here and he might take u there but on a longer route to charge u extra so always take a meter taxi and make sure the meter is on. My suggestion is speak to an agent and u will find stuff and all.
btw 1 dollar = 38 baht while 1 dhs = 10 baht. U can pm xty from dubai forums or check my forum. check ur pm.