Paint - Ceiling White ?

It's time to repaint our ceilings. The paint that the builder used is no longer available...we found that out when we ran out about 5 yrs ago - when we were doing touch ups.

So, i'm going to start in the bathrooms.... the kids bathroom has 2 small areas of mold. and things are peeling where the dry wall joints are, like the tape is pulling away... looks really crappy.

Home Depot is closest to me, so i have been looking on their web site... they carry Behr and Glidden.

I do recall there is a ceiling paint out there that is slightly purple when you put it on, and it dries white.. so you can keep track of what has been painted or not.

I want to 'do it right' as long as i'm doing it... and do not want to do this again ... probably be here another 5-6 yrs. [hopefully less]

can anyone recommend a good - one coat paint for ceilings?

thanks in advance,

Terese