I'm waiting for an iMac (or perhaps a new "mini" Mac Pro) with eSATA to come out. Won't buy any new personal computer without an eSATA port. I wonder what's holding up both Apple and PC makers. And they must find a way to make it "hot swap" — add and remove eSATA devices while the computer is running, just like USB and FireWire devices work (currently, your computer must be switched off before you can remove an eSATA hard disk). Here's some discussion that reveals why eSATA is so desirable: http://forums.macrumors.com/showthread.php?t=440925

UPDATE (2008-03-11): After I read Apple in Talks with Sony about Blu-ray Drives, I wish for the next iMac to also come equipped with a Blu-ray drive. Would also appreciate the traditional matte (non-glossy) display, at least as an option. Apple, please don't disappoint!