Is this going to be flat or gloss white? Are you more concerned about the coverage ability of white paint, or are you worried about yellowing? Is this a situation in which you could use a spray can? There's a whole lot to say about white paint, so I thought I'd ask those questions to narrow it down.
I've done the blue tinting to white paint idea. It doesn't work for enamel. Some might say it does, but they should spray something with that same blue tinted white and compare it to the old paint jobs they've done. I currently have a whole bunch of stuff I have to redo thanks to this bogus idea I picked up from usenet.