My year-old Iogear USB KVM crapped out on me, and they won't replace it under warranty because I can't find my receipt.
I just bought (and returned) two replacements, a Belkin and another Iogear. Neither model would allow me to do keyboard commands to open the CD tray and other Mac-specific stuff. My old Iogear let me (but that model is now replaced.)
Do you know of a good 2 port USB KVM that will do the job?