Deepdiscount.com's notorious 20% off sale is even better at 25% off this time around. Their normal prices for DS DVD Collections range from $26.87 to $46.19. With the promotional discount and and their always-free shipping, you can pick up sets for between $20.15 and $34.64!!!
Be sure to enter promo-code DVDTALK at checkout - expires on 11/23/08.