WormBase maintains a public FTP site where you can find many commonly requested files and datasets, the WormBase software and prepackaged databases. DNA sequence data for the genomes of C. elegans, C. briggsae, C. remanei, etc., are available in FASTA format, as is protein data.  Microarray data like the up-to-date mapping of microarray probes to WormBase genes for Affymetrix, Agilent, Washington University Genome Sequencing Center and Stanford Microarray Database (SMD) chips, is also made available.  For C. elegans, the following files are down-loadable from the FTP site: confirmed_genes — which lists curated C. elegans genes that have been confirmed by transcriptional data; wormpep — FASTA-format files containing predicted and confirmed protein translations, and many other files.

Take a look at our FTP site at ftp://ftp.wormbase.org/pub/wormbase/.  Be sure to look at the README file in each directory for a listing of the contents of that directory.