Some places I typically scan for ink & paper:

Hunts: http://www.huntsphotoandvideo.com/shoppi...ue&acc=true
price "in the cart" is $47.99 for Epson3800 cartridge

Atlex: http://www.atlex.com/cgi-bin/commerce.cgi?add=action&key=T580500
price "in the cart" is $44.99 for Epson3800 cartridge

InkJetArt: http://www.inkjetart.com/cart/shopping_cart.php?cPath=793_1163_1164_1211&sort=4a
price "in the cart" is $49.95 for Epson3800 cartridge

RedRiverPaper: http://www.redrivercatalog.com/inks/epson3800inks.html
price "in the cart" is $49.99 for Epson3800 cartridge

B&H $44.59

Paper of various kinds will often go on sale here & there. But rarely have I seen ink go on sale. I highly recommend Atlex.
russell