Here’s a pretty neat service I found to send around files up to 1GB for 7 days/25 downloads. I’m not sure if you’d want to trust these people with anything too “secure”, and it’s amazing that ad revenue can pay for this, but it’s worth a shot. Expect spam at the email address you enter 
I’ve seen similar services from Rapid Share (50MB, deleted after 30 days without being downloaded) and dropload (100MB, 7 days). Anyone know an even better one? 
YouSendIt | Email large files quickly, securely, and easily!
Enter your recipient’s email address, select your file, then click on the Send It button to send a link. Your privacy is guaranteed.
