polygon buffers?

Dear R gurus,

I am very excited about all the spatials tools in R because they have 
almost liberated me from ESRI products. One of the last things I have 
yet to figure out how to do in R is to create buffers around polygons 
(or just expand polygons). I searched the R-sig-geo archives (using 
Google) for "polygon buffer" and "transform polygon" but haven't found 
anything to get me started. Thanks in advance for your ideas,

Peter

Peter Adler
Department of Wildland Resources
5230 Old Main Hill
Utah State University
Logan, UT 84322
tel: (435) 797-1021 / email: peter.adler at usu.edu