I have a powerbook, which may not be a iMac. Nonethless, I recieved my Apple Wireless Keyboard yesterday and my MacMice today and I am loving it. I know a 12" Pb is supposed to be portable but those things get so dash darn hot and a keyboard feels ten times lighter. I highly recomment also because when I hook up my powerbook to my main monitor and use it as a desktop, the ability lean back in the chair with keyboard and mouse in hand is just priceless. By the way, for batteries, just purcahse a 8 pack of rechargebles with a charger. I got mine for $45, this way I have all rechargable batteries and I have backup. Puuuurrrrfect with Tiger!