kind of depends what you want to hear - trance & techno for example isn´t that big in BKK. Some options:
Narcissus is beautiful, music can be so-so. Entry is 500 Baht incl 2 drinks (Vodka/Redbull for example) = 10,- Euro
Sometimes Paul van Dyk and Paul Oakenfold play there, unfortunately never when I´m around - but then it should be quality.
Crowd is about 5% non-Thai, I´d say, and the Thai who go there are a bit "better situated".
Oh, outside even taxis are stopped regularily by the police for controls. So be a nice guy and stay with Vodka.
Lucifer: whenever I had a look into Lucifer it wasn´t really that full. A shame actually, nice club. Friends spent banging nights there, so maybe give it a try.
Been to Ministry of Sound in 2002 and it was damned packed and very very good - got closed, then renamed, then I think closed again. Don´t know if it´s still operating as "Double O" again.
Cafe de Moc near Kao San has some trance and techno nights on, haven´t been there.