Beer Huntor

Well you can centralise divs in a container using margin:0 auto
 
If I were displaying 3 divs in a row next to each other however, I would use float:left on all of the divs and then use margin-right to achieve the spacing between each div. You can use a class if you only need to apply margin-right to the first two divs (which will most likely be the case).
 
You could even use absolute positioning as an alternative.
 
Hope this helps