"We're running this entire website on a
smaller full-time staff than
your office IT department".
That sums it up pretty well. It does run the risk of people thinking
that means we don't need much money, and therefore don't donate. It's
difficult to get the balance right between saying how efficiently we
spend money and saying how we need lots of money - the two seem, at
first glance, to be mutually exclusive (they're obviously not in our
case - we're just doing so much that however efficiently you spend the
money, you still need a lot of it - but it still seems that way).