OK - basic point - I can see my old iPhoto library and can move it - so where do I drop it into the new computer to ensure it will be default?
Although I have the latest Lion update, I'm using an old version of iPhoto, so this maybe wrong..........but....I think it should work
First, re-name old photo library "Old iPhoto Library" to avoid confusion, then copy your new iPhoto library into the "pictures" folder.
Open iPhoto whilst holding down the 'alt' key, this will bring up a dialogue box with 3 options:
click on 'choose Library' , a window will then open showing available libraries in your "pictures" folder, select the 'new' library and you should be good to go!
The chosen library will then be the 'default'.
(You can have multiple libraries and switch between them using the 'alt' key when opening iPhoto.)
For iTunes, open iTunes go to preferences/advanced and you can specify the location of the 'media folder' to the one you have copied from your previous Mac.