Office Depot is a great, unexpected source for techie gift deals. For Black Friday, grab an HP Envy Ultrabook for $599 (save $180), a Toshiba Satellite S855 Laptop for $399 (save $200), an EPSON Artison Wireless All-in-One printer for $150 (save $150) and a Nikon Coolpix camera for $199 (save $80). Visit online at OfficeDepot.com.