Need Linux digital camera advice

[Siri Amrit Kaur]

I'm wanting to get a digital camera. I don't know anything about 
digital cameras or how to get them to work in Linux. I've never 
attached a USB device of any kind to my computer, I'm that far behind 
the times. My son has an Olympus Camedia C-50 and it takes great 
pictures. I've searched, but can't tell if it's supported in Linux. 

From what I've been reading, what I really need is a flash reader 
that's supported in Linux- the camera model doesn't matter so much. 
Do y'all agree? If so, what do I need to know about flash readers- or 
anything else camera-related-  before I buy one? 

Thanks for any advice you can give me.

Siri Amrit