What app can I use to browse photos on my iOS devices from a Mac on the local network? I am trying to figure out if there's an app out there that can let me browse photos from my Mac via wifi. 

So I have a 


mac on the local network
iOS devices on the local network
1000s of images on the mac (Aperture/Shared_Folder)


I want


access to these images on the iOS devices
slideshows etc


Can't seem to find anything yet.

Thanks.
If you have Aperture, you can create libraries without importing the original. I have my photos on different libraries. One on my usual Mac and and a few others on external disks on another Mac. It might be a bit slow but it works