Queueing Files for Copy

Where do we send suggestions to Apple? When I copy lots of files over my wifi, I prefer not to transfer the big ones simultaneously--queueing them is always optimal. OS X does this by default in bulk copy, however when you individually copy files over, it starts the copy process each time. I'd like to suggest they alter this so a button appears that allows you to queue files for copy rather than forcing them all. Also, a "resume" feature would be great for file copy as well -- I've lost files in transfer before and it would be great not to have to restart a 4 GB transfer even over the 802.11g network.