Travel Technology - Need Printer with Envelope Feeder

I have a 6 year old Lexmark T630 that is about to die and need to replace it.

Can someone recommed a current model that comes with/I can buy an envelope feeder for (<25 at a time). It does NOT have to be networked.
I do have a couple of T63X toner cartriges for it ($300 ea) and would like to find a model that can use these, but if that is not possible, I am willing to consider another brand. The envelope feeder is mandatory.

Of course cheaper is better.

Do you have the envelope feeder already? If so and with existing toner cartridges you may want to look at a refurbished T630 which can be had for around $222. http://www.compuvest.com/Desc.jsp;jsessionid=aK6IdwBP5cXbvnW9Xe?iid=957517

Cheap alternative to use up the supplies you already have.