I’m pleased to see that Andrew Ingram has released Gridmaker For Photoshop CS4. This panel helps build column-based layouts by setting guides at specified intervals; here’s a screenshot. Andrew notes that he hasn’t had time to polish various rough edges or to make a nicer looking UI, but I think the panel is useful even in its current form. Thanks to Andrew for his efforts to tune Photoshop for designers. For more info on why to use guides, plus a link to GridMaker for Fireworks, see previous.