Image Compression Software for Website use?

[SHAWT]

I'm looking to compress files with out major reduction to quality of my photos. I just got my web site up and my photos are definitely larger than 15mb Godaddy.com's web designer allows.
Also I run a Mac any help?

I'm new to the fourm so I apologize if this is the wrong spot. I thought it seemed the most suitible location.

Facebook.com/QA.Creative
Flickr.com/shortd
DeLaCreateur.com

 

[KmH]

Duplicate - Closed.