For the more proficient R users, came across an unpublished piece by Tim
Hesterberg at Insightful.com (the developer of Splus) on "Efficient
S-Plus Programming". From what I quickly gathered, Tim is the in-house
guru on bootstrapping. The last time the piece was updated was 2002 so
I don't know if some of the comments have been superseded by newer
revisions to the software. But the concepts seem fundamental.
the link to the specific paper...