Linksys
Pros -
small, easy to setup and configure, reliable, easily stacks with other linksys products. All-in-one (fw, 4-port switch, router/gway)
Cons -
w/ old firmware sometimes nserver was dropped - use a newer one!
Its blue, so if you have a black comp it wont look good !
D-Link -
Pros -
Inexpensive; superb access control and security features
Cons -
No uplink ports; short warranty.