I'm only on 56k dial-up, and the sites all loaded as quickly as some (and quicker than most).
Only comments I'd offer are:
On your Accountants site, the serif font looks pretty amateurish.
Non serif would look much more business-like. And the
mission statement thing looked about as convincing as most of them do
(i.e. not very convincing). Just tell customers what you
can do for them, and why they should choose you, not someone
else. (Suggestion).
On the ISO Consultants site, I thought it a bad idea to have Google ads
at the top of the index page. Don't give people a reason to
click off your site before they've had a look around...
Good luck with them.