I am so happy to have found this forum today! Short background...had a Rebel XSI and took an adult ed class that was way over my head. I never really ventured off the auto setting side of the wheel. Took some nice shots over the past 6 years then my home was broken into and they took everything! Now I have a Canon 60D and a new desktop MAC. I am so determined to be a better photographer so I went out and bought a few 60D how to books. Now I think I'm in over my head! On the advise of one book, I changed my colorspace to Adobe RGB and shot in RAW & JPEG together. After numerous calls to Apple & Canon I was able to load my photos onto my computer in all sorts of files (I'm so lost at this point). I wanted to print a few pictures at Costco and found out today that they will convert all files (except RAW) to JPEG and they only use RGB. I went into Canon's digital photo program, my iphoto library and even my pictures files and now have no idea what to do! I just want to tweak some pictures, convert them to jpeg and have them printed at Costco. I also have Photoshop elements 10 in this mess/mix. Any advice would be so appreciated!