Greatwall is our brand name. And this is the most popular type of GREATWALL, E530. Following is the lowest configure of E530: 14.0" WXGA Glare Screen /Cerelon 1.6GHz/256M DDRII/60GB HDD/COMBO/Wireless Lan/External Bluetooth/window XP home/English Version Keyboard Port:56K / 10-100M Net Card / USB2.0x3 / IEEE1394 / VGA / PCMCIA /3 in 1 Card reader/S-VIDEO Usually our clients would like we supply with no OS(XP-Home),and it will cost you no more than 500USD/PC. If you are interested,pls feel free to contact me.