HP 6500 All-in-One Much easier to set up on Linux for me
I got this recently, and set it up in record time on our home network for use by my wife on her MInt 9 desktop. When I tried to install drivers and configuration tools for it on a WinXP notebook, it was much more problematic, and it took several reboots/re-installs to finally get it working.
YMMV