Is there a Mac equivalent to Fotoslate 4? A contact sheet maker.

I have recently bought an iMac and apart from one piece of software, Fotoslate 4, everything is running perfectly. It is basically a contact sheet maker. It is nowhere near the best piece of software in the world, but it is much better that the one on CS4. It allows you to have more flexibilty and is much quicker. It doesn't open every image up before placing it into a thumbnail size contact. It also gives you the ability to place drop shadows and strokes, etc without having to prepare the image first with another action in Photoshop.

I assume from the lack of responses that there isn't a better alternative than Photoshop or Bridge. I will persevere in my hunt and keep checking back here in the hope that somebody finds something.