TP-Link TL-WR1043ND (Gigabit)
Recently around May/Jun'11, this unit was offering at around RM150, definitely good bargain for a router with gigabit, Atheros AR9132 @ 400Mhz, 1xUSB2 port ! 
Furthermore, it's supported by both DD-WRT & OpenWRT, can install Optware and other packages, really cool !! 
Flash method: Web Gui
- Initial flash filename: factory-to-ddwrt.bin
- For existing DD-WRT upgrade filename: tl-wr1043nd-webflash.bin
Revert method: Web Gui, download revert file HERE
Factory Firmware: http://www.tp-link.com/en/support/download/?model=TL-WR1043ND&version=V1#tbl_j
Factory Firmware Simulator: http://www.tp-link.com/simulator/TL-WR1043ND/index.htm