[R-sig-Geo] Script to 'sample' several grids with result saved to text output?

[Sander Oom]

Dear R-geo and GRASS users,

-Before trying to reinvent the wheel I would like to check whether 
someone has tried this before.-

I have several rasters with environmental data. I also have point data, 
representing animal locations (collected with GPS collars).

I would like to use GRASS to 'sample' (apologies for the ArcInfo AML 
terminology, but it might help people to get what I need) the rasters 
with the point data and save the results in a text file for further 
analysis with R.

The resulting text file should contain a field/attribute of my choice 
from the points data file (some sort of ID for each point) and a 
field/attribute for each of the sampled rasters.

Preferably I would use an R script that calls GRASS, as both point data 
collection and further analysis is done within R. However a GRASS script 
working on input and output text files might also be sufficient.

Any help would be much appreciated,

Sander Oom.

PS: I am a total novice with GRASS.