How to setup a wi-fi net with ip printers?

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I have just buy a Linksys wireless-N router and i all ready own a wire Linksys router and a chinese switch. Before I install everything all my network was wired,but now i need to give more people accees. I have 2 Macs (with wireless cards),3 Pcs (2 with recently buyed wireless g cards and one wired),2 Xerox Copiers with Splash Servers (this means IP Printers), 1 Plotter (this one is also connected by ethernet).How can I keep printing on those tree and also i have a paralel printer that I need to be available to the PC`s.