I'm on the market for photo-printers but I have 2 questions.. I have a desktop PC and a surecom wireless router for wireless connection, but after I'll buy the printer, I'll connect it to my airport express from its usb port, so that me and mom can print stuff from our powerbooks.. Does the printer require mac-compatibility for this kind of networking? secondly, I liked the Canon's Pixma iP4000 (since I have a Canon PowerShot S50, I prefer Canon-branded printers because of direct connecting the devices) but I read that it has problems in networking with macs, any iP4000 user friend here, that can tell us if it is true or not??? I may go with iP5000 too, which one would you recommend??? Thanks in advance..