I paid for 8 more toner refills on Monday at 2:42 pm, and the order arrived at my door today (Wednesday) at around 2:30 pm. 48 hours is a pretty good turn-around.
I paid $59.95 USD for the 8 toner refills and shipping. The helpful sales person added a Toner Hole-Making Tool at no extra cost (I am not sure why I did not buy it the first time). It is important to purchase this tool so that you will not have to use a drill to make the hole in the toner cartridge that you are refilling. When you drill a hole, you risk some plastic chips falling in. The Toner Hole-Making Tool is $7.95 USD.
You can call in your orders at 1-888-446-5695 and you will get a very helpful sales person to help you with your order. I found this vendor on eBay, which is one of the better places to find deals on the Internet. This eBay power seller dol-auctions maintains an eBay store called Distribution Online.
Here is the yield I got on with my last 8 toner refills:
So for $59.95 I saved purchasing 8 HP 2200D 96A cartridges which are $66 each. That works out to $528 for 8 cartridges for a savings of $468 after I pay for the 8 toner refills!
When your cartridge wears out you can pick them up pretty cheap. Here are a few places.
Ink Jet Superstore — $36.38 for a C4096A refilled with $5.95 shipping in Canada.
eBay — $15.95 for a C4096A refilled with $11.95 shipping to US and $26.00 shipping to Canada.