PhotoGrid isn't the prettiest of OS X programs, but don't let that put you off... Give it a go and you'll soon be converted to it's speed and ease of use. It has, I think, made my life 200% simpler. Bravo!
thank you thank you thank you! i'm a professional photographer who needed to be able to efficiently view a folder of images with a resizeable thumbnail view so i could quickly edit down the images from a shoot. this applications is exactly what most professionals need to make the editing process quick and easy without adding a bunch of bloated features that would slow it down. thank you!
In the land of many, PhotoGrid stands out as a winner. Sometimes simplicity is the hardest route to partake. It is my default image viewer and organizer on my Mac, both in Aqua and Classic environments.