Tuesdays are relatively quiet and kinda on the skanky side at the moment:
If u just want a fun drunken night out, check out Milkshake at BAJA, RnB, Dance and Cheese, cheap drinks deals etc.
Red Alert at Courtyard is good, cheap drinks etc
And Uberism at Discotheque (Gatecrasher) is cool... Sexy Club!
Hope that helps.
Keep an eye out on the new Oceana opening up, thats gonna have a good tuesday night.