[R] Methods overview

[Sean Davis]

Sorry for the very basic, general question.... I have read over the 
methods aspects of the R Language Reference manual and some of the help 
pages (methods, setGeneric, etc.) and remain a bit confused yet about R 
methods.  Looking through the contributed docs and mail archives didn't 
give me the VERY basic starting material that I feel I am lacking.  
Could folks share with me a few links or commands of interest to get 
started?  Also, just a general question, but are S4 methods now the 
standard?

Thanks,
Sean