Most of us, from time to time, need to send large files - files that typically are above email send/receive limits. I've found two source of help:
Both sites are free, and seem to rely on advertising. Of course, whenever you are sending anything on the Internet through a 3rd party, use care and discretion!
Yousendit used to support sending files up to 1GB, but the limt was reduced to 100MB (and up to 100 downloads) recently. For a monthly fee, they enable transmission of up to 2 GB and 200 downloads.