Hello /g/. I was looking to purchase a 4GiB RAM stick today and I went along to JB HIFI and asked about RAM for a desktop machine, (DDR3) and I was pointed to a few laptop ram sticks and I was told that I would be able to use that in my machine if it was a Macintosh.? Can you use laptop RAM in a 27" Mac, that is what the idiot teenage salesman told me. I ended going to a proper computer store and paying AU$40.00 for a 4GiB stick.
Last time I checked all the parts inside a mac were identical to those in a laptop. The only reason people pay buttloads of cash more for a mac is for the OS and the shiny exterior
I assume you went along with the details of what RAM your machine takes? Don't accept anything else (obviously). Also, if the clerk was wrong, inform his superiors.