I have two old HP all-in-one printers (2005). The scanner just broke on one of them, and the other does not scan because a driver is not available for Lion. So, I want to start fresh and buy a new all-in-one printer. Wi-Fi would be nice, but I'm mainly looking for simplicity and compatibility with Mac. It is also very important that it allows me to scan text documents to PDF (which one of my HP printers did with my Mac). Thanks.