I second Ronald's recommendation. NewEgg has 100-disc spindles for $14.99 + $4 FedEx Saver shipping. They come in a variety of coloured writing surfaces:
The FUJI CD-Rs (made in Japan) are actually Taiyo Yuden CD-Rs, which are regarded as the best in terms of reliability, compatibility with CD-R drives and long term data integrity; they also come at a premium. NewEgg carries both FUJI and Taiyo Yuden CD-Rs, but cost twice as much as the RITEKs.