Printer recommendations for doing DIY postcard campaigns?

[Dave Lee]

I'm creating my postcard campaigns and looking for a high speed printer
that is not too expensive.  

Since I'm mail merging  I want a FAST DUPLEX  inkjet printer so I can print both
the body side and the addressee side quickly.  Also, be able to stack a "good" amount of paper, card stock weight or 110lb, in the loading tray (preferably rear feed loader).

I've spend hours looking and haven't found a printer yet. :(

Does anyone have any recommendations?  Michael Quarles I hope your
reading this or anyone out there?  :)