How can I see what the finished look of a bathroom will look like? Software/website?

I want to redesign our bathrooms.

We are going from 60's blue bathtub to 2009.

I have tons of ideas but I want to make sure everything is cohesive and not end up like a bunch of great idea/texture but a terrible result.

Can I find a website to do my own design and pic color slate, granite, cabinets, et...?