If your customers are running a download site or something similar and are running you out of bandwidth, send them to me. I'll pay you ~$20 for each account you send my way. My standard account would just host their downloads, so you could still keep them as a customer for other stuff. If you want to sell their entire account to me, we could discuss more payment.
My rates are $2/gb disk and $12/100gb bandwidth. This is perfect for clients who do not want to move to a dedicated solution but have high bandwidth needs.
To take advantage of this offer, drop me a line and have your customer contact me directly. If they decide to sign up, you free up your bandwidth for more profitable accounts, and I pay you a referal fee!
Ultra, for a large commit it would take a couple of days for me to bring a few more servers into the mix. How much disk space were you looking at? Not sure if this matters, but I forgot to mention in initial post that I don't do adult content.
If its pure downloads, I could definitely work a discount for such a large commit. If not, I'd need more information before I could commit to any type of setup.