Reply to Club DJ...what equipment?

Hi people, this is my first post on here, hopefully i'll get some good answers back coz im racking my brain right now!

Basically Im a DJ/ Producer from London, UK. Im also part of a DJ/ Producer duo. Whenever we get booked to play we have always used Vinyl or Traktor and a midi-controller (Kontrol s2).

However, recently i have been offered residency at a club in London as well as getting bookings at other clubs, my question is, what gear should I get so that i can play at ANY club?

Ideally i'd like to just use my laptop/ traktor (or serato), but i want to be able to go to ANY club with my laptop and just plug in, using whatever cdj's they have. I know that software/ hardware like NI Audio 6 and Traktor scratch pro will allow me to play my Traktor library on any cdj's, but obviously I cant use the effects in traktor unless i purchase another piece like the Kontrol z1 or z2 etc.

What do you guys believe I should go for? and what gear do you guys use?

Cheers in advance for any info back.

AJ.