Last night I received my new iMac. I copied a lot of my images over to the hard drive but i didn't want to create an iPhoto library yet because I will be adding Lightroom in a couple weeks and I plan on using that. Is there a reason i shouldn't use iPhoto in the mean time? I'm concerned with: multiple copies/too much hard drive usage, creating a "messy" import later for LR3, or some other unseen media management issues. Thanks for any help.