check this one:
http://www.concrete5.org/marketplace/addons/sortable-fancybox-galle...

Thanks, but the Fancybox Gallery runs in the lightbox and not direkt on the site / in the content. In the content there are just the thumbs.

I am also looking for a non-lightbox, responsive, thumbnail gallery, where the thumbnails can be placed in a separate div from the main image on the page, and styled as I want them. I modified one of the C5 add-ons to do this, but that add-on is getting old and now behaves strangely in edit mode.
Other features that would be great:

1.Ability to use full html in captions, so that titles can be italicized, " symbols inserted for inches, links added, etc.
2. No character limit in captions.
3. Drag & drop image re-ordering in block interface.
(the little up/down arrow thing can get annoying when you've got 24 images.

Also, on the main image, CSS-based responsive sizing is good, but I want both landscape a portrait images to resize to fit on the screen. So I had to add a jquery resizer to make sure portrait oriented images don't go below the fold. It'd be great to have this functionality built in as well, though I can imagine the difficulties involved.

Wish I could build a gallery block myself, but don't have the time, or the depth of skill, yet. :)

Did you find a solution?