Checking over my reloading bookshelf:

Any Shot You Want - Art Alphin, Craig Boddington, et al

Metallic Gartridge Reloading - McPherson

Handloading For Competition - Zediker

Precision Shootig Reloading Guide - Brennan

The ABC's of Reloading - James

NRA Reloading Manual

Sinclair International's Precision Shooting and Reloading Handbook-Gravatt and Sinclair

Shooting the British Double Rifle

The regular reloading guides put out by bullet and powder makers, but only Barnes and Hogdon have information on the 470NE and nothing for the 500NE. But all of them are good sources for general reloading information.

Can't have too much information when resting your cheek behind two "bombs".

My bench is pretty simple - Go to Home Depot or Lowes, pick us an unfinished SOLID wooden door, get a couple of their cheap kitchen floor cabinets and mount the door to the top. I do put a sealer on the top surface of the bench to make it easier to clean up and powder spills ad such.

Best of luck!