Morgan,
Thanks for your camera insights. We're also looking to purchase a digital soon and what you said is very helpful.
There is (or will be) an excellent, independent research agency for testing the longevity of various inkjet prints by different manufactureres. Their data was originally supposed to be available by February, but apparently they're still working on it. Hopefully it will be helpful to those in the market for a printer (when they do post their data).
http://www.wilhelm-research.com/upcoming_data.html
Regards,
Holly