SW will be all but useless if the 750 is indoors and next to a computer. You'll likely get a ton of RFI. You'll have to set up an external outdoor antenna.
Get this PAR antenna and buy some RG-8x coax and a $3 BNC adapter. Orient the antenna away from the house (and any metal structures) if possible.
PS. For camping purposes, the stock whip antenna should be fine. Of course, you'll obtain even better reception with the PAR antenna strung up in a tree, etc.
PAR antenna: Par Electronics EF-SWL End Fed Dipole SWL Antenna. Par EF-SWL.
Coax: Coaxial Cable, Coax Cable Preassembled --> #0497 (or whatever length you need)
Adapter: BNC Adapters --> #2122
Thank you for the advice. My main interest at the moment is the AM capabilities of the 750. I enjoy listening to talk radio. I realize there probably more affordable radios out there but I like the 750 and I like the "ability" to tune in to SW. I understand about the various accessories and will, no doubt, purchase them but I am interested in the quality of the 750. Can you speak to that?