CISCO Linksys Wireless Home Router with SpeedBurst WRT54GH.

Cisco Linksys Wireless Home Router with SpeedBurst WRT54GH. 1 Year Warranty. Shipping FREE !!
http://www.koovs.com/deals/deal/Linksys-Wirelrs…

Price : Rs.1099
Use KOOVSJACK2 end get 80 off (For me its showing technical error)

Final Price: 1099-80 = Rs.1019

Key Features
All-in-one Internet-sharing Router, 4-port Switch, and Wireless-G (802.11g) Access Point
Complies with 802.11g and 802.11b (2.4GHz) Standards
Shares a single Internet connection and other resources with Ethernet wired and Wireless-G and -B devices
All LAN Ports Support Auto-Crossover (MDI/MDI-X) – No Need for Crossover Cables
High security: Wi-Fi Protected Access (WPA2), wireless MAC address iltering, powerful SPI firewall

Tech Specifications
Model: WRT54GH
Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.11g, IEEE 802.11b
Ports: Power, Internet, Ethernet (1-4)
Buttons: Power, Reset
LEDs: Power, Internet, Wireless, Ethernet (1-4)
Modulation: 802.11b: CCK, QPSK, BPSK
802.11g: OFDM
RF Pwr (EIRP) in dBm: 802.11g: 14 ± 1.5 dBm @ Normal Temp (Typical)
(US and Canada): 802.11b: 17.5 ± 1.5 dBm @ Normal Temp (Typical)
Receive Sensitivity: 1Mbps: -93dBm @ 8% PER (Typical)
11Mbps: -82dBm @ 8% PER (Typical)
54Mbps: -68dBm @ 10% PER (Typical)

1. of Antennas: One Internal PIFA Antenna
   Antenna Gain in dBi: PIFA<= 3dBi
   UPnP: Supported
   Security Features: WEP (64 and 128), WPA-Personal, WPA2-Personal
   Security key bits: Up to 128-bit encryption

Price Comparision:

@ Ebay .. Rs.1352
http://www.ebay.in/itm/Linksys-WRT54GH-Wireless…

@Letsbusy..Rs.1450 (OOS)
http://www.letsbuy.com/cisco-systems-compact-wi…

@HS18..Rs.1399
http://www.homeshop18.com/cisco-linksys-wrt54gh…

Is this a good router? Does it have modem inbuilt or do we need to buy one separately? Sorry for noobish questings