Not too expensive to run. Similar offerings from hp are more expensive, I have the IP5200R, and its excellent, its pretty much the same head as the 4200, but with wifi and ethernet as well as pictbridge (not sure if the 4200 has it). The print quality is excellent, and ink wastage minimal. Just don't use it for printing text as it uses colour to produce black text, and not black ink.
OT TRiP, did your 4200 come with a USB cable?