Sorry, no experience with your current picks...
However I was recently recommended the following:
MP830
Canon Pixma MP810MP810:
http://review.zdnet.com/multifunctio...-32077664.html
HP3310
Epson Stylus Photo RX510:
http://www.zdnet.com.au/reviews/hard...0281488,00.htm
As for networking these printers, you should have absolutely no problems at all, I have a few friends using these for the same purpose, they all swear by them…
Here is a tutorial on setting up a home network if you need a bit of direction:
http://www.pcstats.com/articleview.cfm?articleID=1596
I have found that one of the most important considerations to take before buying a printer is the cost of replacement cartridges; some of the difference between brands/makes can make a difference...I would just go for the one that has the cheapest running costs out the ones that consistently come recommended. As for networking, I have not come across a printer that you cannot network, some take a bit more patience e.g. drivers etc...
Hope that was of some use to you?
Good luck.