I have the CELTA and lots of experience; I was wondering how much you would get paid for working in a language school in Dubai. Is it worth it? I mean would you save much? And which are the best schools to work for?

I recommend that you have a look at Dave's ESL Cafe site
http://www.eslcafe.com/
IF you haven not done so already.

Hardly anyone saves in Dubai. You earn well and spend well. The best paid language school is the British Council and you have to apply from their main international website if they have any positions going.
Another credible language school is International House and also some of the western universities (UOWD and Middlesex) take people on with a CELTA all at reasonable rates. If you really want to save money you need a DELTA and/or masters degree in ELT and then you can get a job teaching the local for the government.