Canon all the way. Got a IP3000 here that has been going strong for a few years now. Personally saw insects falling into the printer that I have bever been able to get out and had it covered in dust more than a few times after leaving the glass sliding door open that leads outside on more than a few windy days.
It started making strange noises while printing more than three years ago, obviously due to all the crap it has already ingested. I bought a Canon IP3500 as a standby replacement for the day the 3000 dies, but the 3500 is still to this day sealed in its box. The thing just will not die.
Print quality is great, the automatic duplex printing (prints on both sides of the page, cutting down on paper usage) is great and the ability to print on CD's has come in very handy when creating my own home DVD's.
I also own a Canon MX700 all-in-one and it is also a great machine.
In case anyone was wondering, I do not work for Canon.
Yes, the software may be a bit bloated, but any unwanted features can be uninstalled individually after the setup CD has run its course.