Dan,
I do some similiar test work like this with ReadyHosting (
www.readyhosting.com). They have sql 2000, it is accessible from outside their servers, assuming your local firewall will allow you to connect out to them.
Hosting rates are reasonable, just remember you get what you pay for. There are sometimes some issues with getting support, but generally speaking I've had good luck with them.
Bob Horkay