Homebuilt vs. cyberpowerpc for midrange gaming system

My old gateway died this week so I am looking to build my own mid-range gaming PC, but it seems that price-value I'd be better off buying from cyberpowerPC.com.

I configured the following system and was wondering what people think.

* CASE: CoolerMaster Centurion 590 RC-590 Mid-Tower 420W Case
* POWER SUPPLY Upgrade: 750 Watts Power Supplies (Corsair CMPSU-750TX - Quad SLI Ready)
* CPU: Intel® Core™ i7-920 2.66 GHz 8M L3 Cache LGA1366
* COOLING FAN : Asetek Liquid CPU Cooling System (Extreme Cooling Performance + Extreme Silent at 20dBA)
* MOTHERBOARD: (3-Way SLI Support) Asus P6T Intel X58 Chipset SLI/CrossFireX Mainboard Triple-Channel DDR3/1600 SATA RAID w/ eSATA, GbLAN, USB2.0, IEEE1394a, & 7.1Audio
* MEMORY: 6GB (2GBx3) PC1333 DDR3 PC3 10666 Triple Channel Memory (Corsair Dominator)
* VIDEO CARD: NVIDIA GeForce GTX260 CORE 216 896MB 16X PCI Express (EVGA Powered by NVIDIA)
* HARD DRIVE: Single Hard Drive (1TB (1TBx1) SATA-II 3.0Gb/s 16MB Cache 7200RPM HDD)
* Optical Drive: (Special Price) LG 22X DVD±R/±RW + CD-R/RW DRIVE DUAL LAYER (Black Color)
* SOUND: HIGH DEFINITION ON-BOARD 7.1 AUDIO
* NETWORK: Onboard Gigabit LAN Network
* KEYBOARD: Logitech Deluxe 250 USB Keyboard (Black Color)
* MOUSE: XtremeGear Optical USB 3 Buttons Gaming Mouse
* Wireless 802.11B/G Network Card: PCI Wireless 802.11g 54Mbps Network Interface Card
* Flash Media Reader/Writer: INTERNAL 12in1 Flash Media Reader/Writer (BLACK COLOR)
* OS: Microsoft® Windows Vista™ Home Premium w/ Service Pack 1 (64-bit Edition)
* FREEBIES: FREE! (Microsoft® Flight Simulator X Deluxe) Game
* SERVICE: STANDARD WARRANTY: 3-YEAR LIMITED WARRANTY PLUS LIFE-TIME TECHNICAL SUPPORT

After rebates and stuff this would cost me around $1230 including shipping and warranty. Not sure I can do any better than that by building my own? Also I need to computer rather soon which means I don't really want to wait for June 26th for the Windows 7 free upgrade program.

Comments appreciated.

ibuypower is cheaper

if you get the same parts the total came out to
1242 before shipping & taxes. on Newegg.
With the following changes: Corsair XMS 6gb Triple channel

and not adding the following:
Wireless 802.11B/G Network Card: PCI Wireless 802.11g 54Mbps Network Interface Card
* Flash Media Reader/Writer: INTERNAL 12in1 Flash Media Reader/Writer (BLACK COLOR)
* SERVICE: STANDARD WARRANTY: 3-YEAR LIMITED WARRANTY PLUS LIFE-TIME TECHNICAL SUPPORT

Of course it wont come with a warranty, only parts warranty..
Plus the hassle to build it yourself...

im stuck in the same boat and i think im going to go with ibuypower only because they offer the case I wanted.

they get there parts in wholesale prices just like newegg gets them...

also there is a 5% off coupon: REPEAT for cyberpowerpc i believe, you can google cyberpowerpc coupon