Gaming Rig for 800$ excluding monitor

I've 800$ or Rs.40k for CPU cabinet the whole box and 13k for LCD
So plz build my Cabinet Box within 40k
Any company products will do
I"ll use Vista Ultimate 64 bit
I'll buy it from Nehru Place, Delhi

HDD- 500GB wil do
Casing must be Cooling efficient , I can compromise on looks a bit
Any DVD writer
GPU must be top-end coz I'll play games like Unreal Tournament, Crysis:War Head, Farcry, FEAR, Assassins Creed, supreme commander, call of duty 4, world in conflict, etc

also tel me which is better monitor FULL HD under 260$ more then 21"
1.Samsung 2233SW
2.BenQ E2200HD
3.Dell S2209W
or any other I just knw these two

MB - Asus P5Q Pro Atx LGA775 P45 DDR2 2PCI-E16 Crossfire 3PCI-E1 2PCI SATA2 Sound Gblan Esata Motherboard $138.88

OS - Microsoft Windows Vista Home Premium Edition 64BIT DVD OEM $111.30

Cooler - Zalman CNPS9700 LED Copper CPU Heatsink 110MM Fan LGA775 AM2 S939 1250-2800RPM 19.5-35DBA Blue LED $61.05

DVD Writer - LG GH22NP20 Black DVD+RW 22X8X16 DVD-RW 22X6X16 DL 16X/12X 2MB IDE OEM $25.92

Case/PSU - Antec Sonata Iii Black Atx 16IN Mid Tower Quiet Case 3X5.25 2X3.5 4X3.5IN 500W 120MM Fan $99.01

Video Card - Diamond Radeon Hd 4850 512MB GDDR3 PCI-E Dual DVI-I Hdcp Hdtv Out Video Card $169.99

Ram - OCZ Platinum XTC PC2-6400 4GB 2X2GB DDR2-800 CL5-4-4-15 DDR2 240PIN Dual Channel Memory Kit $110.25

CPU - Intel Core 2 Duo E8400 Dual Core Processor LGA775 3.0GHZ Wolfdale 1333FSB 6MB Retail $169.88

HDD - Seagate Barracuda 7200.11 3.5IN 500GB SATA2 8.5MS 7200RPM 32MB Cache Ncq Hard Drive Oem $69.88

hello , You Can Get the E2200HD, I chose it over the samsungs and it's AWESOME!!! true 1080p, HDMI.. nice colour.. i've been playing with the modes since i bought it.. the presets are good for fixing dark movies or for when you feel the need to trip out on colours. The sharpness is also very good.. nice screen to read from, very easy on the eyes =) So, gaming's great.. movies/tv shows, awesome with the true 16:9.. You must buy the BenQ! You Can Check the Review on Benq Over Here