PEAR and error handling

I'm not new to PEAR but I'm quite fuzzy on the base PEAR object and PEAR error handling. I have an app that I'd like to use a custom error handler with and I'd like to consider using PEAR Error stuff as part of that solution. Other than the manual, are there any good resources one can recommend? I'd even take a URL to a CVS of a project that is a good example of how to use it.... -- Tony Bibbs "I guess you have to remember that those who don't tony@tonybibbs.com hunt or fish often see those of us who do as harmlessly strange and sort of amusing. When you think about it, that might be a fair assessment." --Unknown