Recommended Photo slider

Hi!

1. Adding a photo slider
I want to add a photo slider to one of the pages I created:
http://cityeomedia.com/cityeo-digital-displays/?preview_id=145&preview_nonce=89f23a9857&_thumbnail_id=-1&preview=true

Can you recommend a stable slider for the shapely theme?

2. Adding a page break line to a page
Is there a common code for adding a page break line to a page? Just want to separate sections.

Thanks so much!