Canon i860 is the printer pro you, or one of the new Pixma printers. True, the printheads are not a part of the ink cartridge like the HP, but I have had several Canon printers over the years and never had a clogging problem. The same can't be said for my Epson printers, all of which will clog if left unused for any amount of time. You'll like the speed and the photo quality of the Canon (if you use Canon or Epson papers for your photos). Canon is also typically the the cheapest in cost of ownership. You can replace the printheads if you ever do have a problem, withouth replacing the entire printer. Don't bother with an extended warranty. They are generally a bad investment.
-Brett