I will need to connect to the DSL AT&T modem which has its own built in router and also my HP 8710 printer. Both are hardwired right now but the HP can only be set up one way or the other so the other users on the LAN can't access the printer (stupid change on HP's part from previous printers). Is there any particular info I need or can i just walk into Fry's and say 'give me a wireless card'?