The lease expensive source of new cases that I've found is:

http://www.bellammo.com/caseprices.htm

Very good quality!

New RCBS dies are available from Huntington's, but they are EXPENSIVE! You might try:

http://www.chh4d.com

Their dies are about half of the price of RCBS dies and make fine ammo. They may require just a little cleanup.

Woodleigh bullets are available from Huntington's or from Midway.

Ballisti-Cast makes a 500 grain 0.476" FPGC bullet mold that shoots well in .470 NE.

Hope that helps,

mike starling