Here is a coupon code for CDR Planet: SPRING2004. Enter it at the checkout and receive $5 off. They sell 100 Taiyo Yuden CD-R's for $32 - $5 = $27. Shipping was only $3.10 for FedEx Express Saver, at least to my location, thus the grand total was $30.10. CDR Planet is based in PA, therefore shipping will cost more the farther away you are. For example, shipping to California for the 100-pack of TY's is $6.53; still not bad, $33.53, for genuine Taiyo Yudens. Of course, you can order something else from them, they have good prices on 4X Ritek DVD-R media as well. A 50-pack for $42 after the coupon or a 100-pack for $85 after the coupon, shipping extra.
And oh, I have ordered from CDR Planet in the past and I was very pleased with their service. http://www.resellerratings.com/seller2405.html