Just for the fun of it, I imported into Acrobat all the cases from the Court of Appeals on-line archive from the first case on January 5th, 1999, through yesterday, February 28th, 2005. I don't know how many cases there are, but the file is 32,406 pages long, and the PDF file is 137 megabytes.
It took almost eight hours for Acrobat to download and convert the files even with DSL, so I don't recommend the procedure for dial-up connections.
The file came out quite nicely, though. The cases appear in chronological order, and each Acrobat created a bookmark for each. I guess I could find out how many cases there are by figuring out a way to count the bookmarks, minus one, for the table of contents, which is just the Court of Appeals archive web page, which links to all of the cases in the file by name, just as the web page does.
I don't know if it is going to be useful or not. At the moment, I think it's pretty nifty.