Hi all-I'm just getting back into photography and am looking for some advice in getting my workflow/setup in order. I currently use a Nikon D7000. Right now I'm working on a Dell Inspiron 1750 laptop, using Photoshop CS5 and Lightroom 4. I have an Epson R3000 printer which, sadly, I have not experimented much with. ComputerIs it workable to continue using my laptop? I have an iMac but don't have Photoshop or Lightroom for it and would probably have to make a definitive choice of PC vs Mac,...