Need FTP server space for reselling

[ncjbhd]

I have a shared reseller account and have been asked by a couple of clients to set up FTP sccounts on their sites for storing some large .wav files (2-5+ GB).

My current reseller account space would be exceeded by offering that, so I was wondering if anyone knows of a good host for FTP files only (I don't want or need standard web hosting). Preferably, I'd like something I could resell using my nameservers or anonymous webservers.

Is this even worth pursuing? Maybe I should just point each client to something like box.net and let them deal with it..?

Thanks.