If I could only have one printer, I would seriously look at the Konica
Minolta Magicolor 2550 DN (the DN has the duplexer). It has 9600x600
resolution like my older Magicolor 2350 and will print on glossy
stock. My 2350 prints a decent looking photo on glossy as well as
plain paper - surely not better than, or anywhere close to, my Canon
i9900 (which is superb

but still good for a color laser (and way
better than my ancient HP 890C lol). The only negative about my 2350
is that it is very loud as it cycles through each of the 4 color toner
cartridges for each page face - not sure if that issue has been
addressed in the later models or not.
http://printer.konicaminolta.com/products/color/mc2550/index.asp
http://www.letsgodigital.org/en/10207/konica_minolta_magicolor_2550/
http://www.newegg.com/Product/Product.aspx?Item=N82E16828117022