I use two
Cisco Linksys WRT54GL for my home. One
good feature of this model is that you can easily install on it third-part firmwares that provide enhanced functionality. I use one router as the main wireless router (that is connected to the cable modem), and the second as a range extender to get the signal to those hard-to-reach places in the house.
Here are instructions for setting up the range extender.