Newbie question: plotting regression models

Greetings.

Is there any way to get R to take a regression model object and draw a 
plot of the regression function?  How about overlaying that plot over a 
scatterplot of the actual data?  Thanks in advance for any help anyone 
can provide.

Aaron

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Aaron Solomon?? (??ben Saul Joseph??) ??Adelman
E-mail??:  ??adelmaas at musc.edu
Web site??:  ??http??://??people.musc.edu??/??~adelmaas??/??
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