I need to know how to obtain all (or most) of the stock holdings of
all (or most) U.S. mutual funds.  Historical data would be nice, but
is not necessary.  I would prefer not to spend $10,000 to subscribe to
a proprietary database.

Possible answers:
1) Website xxx has the information, but not in database form (that's
ok, I can spider the site to scrape the info, as long as its not in
PDF form.)

Excluded answers:
2) Thompson Financial has a historical database containing exactly
that information (I have already found this, but am looking for less
expensive
solutions.)
3) Morningstar has the top 10 holdings (exception: if you can tell me
how to get the rest of the holdings from Morningstar.)

A quick (unofficial) way is to run onto EDGAR (www.sec.gov) and look
at form N-PX filings for a specific fund.  it should show how it voted
each share the fund owns.  Over a year, pretty much every securities
it held should have had a vote of some sort.

This is easy. Download the free trial software at http://www.fasttrack.net.
It lists all mutual funds, and links to the top 25-holdings. Click a
single "Make a Family" button on the FastTrack Internet Tab and the
ticker symbols of the holdings are placed in a list. You can have
FastTrack display an average of the holdings and compare it to the
funds. In most cases you will find the to 5-10 holdings define the
performance of the fund to better than 90% correlation. All this takes
place at high speed as the free trial includs 20 years of daily
dividend-adjusted data for funds and stocks.