pics with high resolution

Do you mean 10,0000 pixels wide or 10,000 pixels per inch? As Derek wrote no media needs 10,000 px per inch.

I'm gonna sound old-fashioned there but maybe hire a photographer to make images for you? 

To help, we need to know a lot more please, are you looking to find copyright free images to download to support your business trade stand? 

I hope this helps
neil barstow, colourmanagement net :: adobe forum volunteer:: co-author: 'getting colour right'
google me "neil barstow colourmanagement" for lots of free articles on colour management

If the images are for a printed poster, or similar, that is viewed from a distance, you won't need a high resolution, such as 300PPI. Maybe 50PPI or less. What are the dimensions to be (in inches) of your printed poster?

<moved from download&install>