I am interested in the harmful effects of large doses of vitamins. A
list of the vitamins, the dose, how long it was taken, the effect
seen, and any special conditions (study subjects had heart disease,
were smokers, etc) is what I am looking for. Results from non-human
subjects are ok as long as this is clearly indicated. I am
peripherally interested in other supplements such as herbs, fish oil
and the like (this info would be great to have but is not required for
a satisfactory answer).

I am only interested in data that have been published in scientific,
peer-reviewed journals. I have access to many of these journals, so
direct links to these articles are not necessary. Summaries of results
or news articles are acceptable, so long as they contain a complete
reference to the original article.

I realise this is not exactly what you are asking for but there is an
overview of Vitamin side-effects here:
http://www.ksl.stanford.edu/people/kpfleger/multivitamins/cached/my.webmd.com_content_dmk_dmk_article_58947.html

Additionally:
Dietary supplements and functional foods: 2 sides of a coin? Charles H
Halsted. American Journal of Clinical Nutrition, Vol. 77, No. 4,
1001S-1007S, April 2003; which is available here:
http://intl.ajcn.org/cgi/content/full/77/4/1001S
is good for a discussion of other supplements, including references
and also mentions:
"Understanding potential efficacies and hazards of dietary supplements
is a daunting task for practitioners. For example, the Physicians?
Desk Reference for Herbal Medicines lists 80 under letter A alone in
its common name index and lists more than 350 side effects for all
herbals (22). The recently published Physicians? Desk Reference for
Nuritional Supplements describes more than 200 nonherbal supplements
(vitamins, minerals, amino acids, and other products) cross-referenced
to more than 300 potential side effects (23)."
22. Physicians? Desk Reference. PDR for herbal medicines. 1st ed.
Montvale, NJ: Medical Economics, 1998.
23. Physicians? Desk Reference. PDR for nutritional supplements. 1st
ed. Montvale, NJ: Medical Economics, 2001.
this may be worth seeking out.

Hope this is of some help.