Thank you for your response.
Would deleting files in the "All Images" side bar delete the image in iPhoto?
The blackened events in iPhoto do point to that … check in iPhoto whether those images load … if not & you use Time Machine, I can help you restore them.
I have 10K + photos on iphoto
10K photos is really too much for your internal hard drive. Copying the iPhoto library & maybe even your iTunes library to an external would be the best way forward.
I'm wondering if I can do away with the preloaded software that I don't use like Entourage and Power Point?
Have a look in the Microsoft ~> Additional Tools in the menu for a way to uninstall Entourage/Power Point alone.
Check Mail as you might need to erase the deleted items for each mail account, and if there are more than one user account, do the same in the other account/s. Also check your Downloads folder too as it might need emptying.
If you use iMovie there might be unwanted clips in the Trash there too.