CSS Class versus ID for PHP/MySQL

["tomwood2" <webforumsuser@xxxxxxxxxxxxxx>]

I'm building some template pages for a website that will eventually be 
populated mostly via PHP/MySQL. The most complex web pages have about ten <div> 
definitions and three or four text styles. All of the DIVs are unique and 
happen once on the page. Some of the text styles may happen more than once to 
style the text of items in an ordered list. 

 Conventional wisdom says use ID for those DIVs, and Class for those text 
styles. But then I've run across comments that diss ID and say go with Class 
alone. I'll be delivering these templates to a programming specialist to set up 
the PHP/MySQL and I'd like to save their time (and my money) by getting these 
templates as close to right as possible. 

 How should I set these pages up in terms of Class or ID selectors to make the 
database programmer's job as easy as possible?

 Thanks,

 Tom