Hey just putting in my input - here's a cheap builld that will let you play crysis (and many other games) easily on high settings.
CPU: Intel Core i5 760
$210
You dont particularly need an i7 to be able to play fantastic games, i7's are more for multi tasking/threading and generally, i5's are the better choice if you consider price
Motherboard: ASUS P7P55D-E PRO
$195
asus have been making great motherboards over the years and this product is the same. This is a quality board.
RAM: G.Skill-Ripjaws 4GB DDR3-1333
$73
4GB is easily enough to get you through graphic intense games - especially with a 1333 model that will allow you to overclock your settings
SSD: OCZ Vertex 2 E Series 60GB SSD
$149
A solid state drive is reccomended in any computer these days, the drives spin faster and games load faster.
HDD: Western Digital Caviar Green 2TB $
104
SATA drives are just the same nowadays - its just a matter of finding the cheaper ones.
GPU1: 1GB AMD Radeon HD6850
$199
GPU2: 1GB AMD Radeon HD6850
$199
2gb worth of 6850 will get you through ANY game. Trust me on this, it will be a worthy investment for many years to come
Case: Coolermaster CM690 II Advanced $125
This is just my personal preference
PSU: Antec Truepower New 550W $105
This PSU will definately be enough to power everything within your case
ODD: LiteOn DVD burner $25
you MIGHT want a device which is blu-ray enabled but it doesnt really matter for me
CPU HSF: Coolermaster Universal Hyper 212+ $31
This fan is great, no need for any of that fancy liquid cooling with this baby
TOTAL:
$1415
This is of course what it costs in
AUSTRALIA so in the US, or generally, anywhere else in the world it will be even cheaper!
i predict it would cost around
1200 in other countries