I have a hp deskjet 5440 that works fine, however I am going wireless and been told that I can plug my printer into my router and all will work fine also my new laptop has windows 7 64 bit is the 5440 compatible. I am interested in speed and being able work through out my house. I also have been told that I should buy a new wireless printer I am interested in the hp C4780 if you recommend buying a wireless.