From Majestic on the opposite there is soi 7 with the famous eden bar. Google a bit and you will know. Later you can take skytrain to asoke, its one stop.If it `s dark, you see on the left side a quirly place with lot`s of neon-lights. Thats soi-cowboy. Visit Afterscool and have a look at their "naughty boy"`s corner. On the opposite side is Long Gun. A slowturnover a-gogo. I promise, you want be disappointed, maybe best show in town.
One stop from asoke you get near Soi 33, there is angel`s massage, i would recommend, but haven`t got it on my last trip.
I have posted my 1-day bangkok trip, wich include a little bit the cultural things in Bangkok and of course the entertainment. But it`s in german and my english is not so well so it`s difficult for me to translate it.
Here is one link with a tour through bangkok for culture i really enjoyed :
http://www.stickmanbangkok.com/travel.html
There are a lot of really good sites on internet, so if you look you should get all the information you want.
tim1234