It will have moderate use from 1 computer and light use from 2 more computers. Also it will be used for netflix video streaming.
some possiblities are
D-Link DIR-655 802.11b/g/n Xtreme N Gigabit Wireless Broadband Router up to 300Mbps/ USB port x1/ Intelligent QoS
BUFFALO WHR-G300N 802.11b/g/n Nfiniti Wireless Router & Access Point up to 300Mbps
TP-LINK TL-WR841N 802.11b/g/n Wireless N Broadband Router up to 300Mbps/ 10/100 Mbps Ethernet Port x4
The DIR-655 is an excellent router, good performance for the price. I have one my self and never get any problems, easy to setup. Can't go wrong with D-Link
If your not transferring large portions of files over a large area a cheap solution would be to buy a WRT54G and DD-WRT it. Idk how your tech knowledge is but its pretty simple to do.