Slashdot is all gaga over the NetGear WNR3500L. Seems like the ultimate N open-source router, with 64MB RAM, gigabit ports, and a USB port for $140.
http://mobile.slashdot.org/article.pl?sid=09/10/05/227208
http://mobile.slashdot.org/article.pl?sid=09/10/05/227208