Good Theme with Home Page Video/Photos Slider

Looking for advice on the best theme/plugins to use to create a home page slider that can contain video as well as photos. I'm currently using Blogs MU (with Child), which looks like a solid foundation.

My other question concerns styling MarketPress: Can I do that through CSS in the Blogs MU child theme or is there more to it? I like Grid Market, is it possible to use that with Blogs MU (or another theme) or as a basis for the store so I'm not starting from scratch?

Appreciate any advice - thanks!