First Time Builder- FInal Parts Check

Hey, this is my first time building a computer. I'm fairly tech-savvy though, and I'm mostly confident in my parts. Just posting them to see if there's anything I can improve on. I'm trying to keep the price under $1600.

APPROXIMATE PURCHASE DATE:Today or tomorrow. Have to take advantage of the Independence Day sale.

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT:Gaming, internet, text processing.

PARTS NOT REQUIRED: Keyboard, DVD-R, Speakers, monitor, HDD

PREFERRED WEBSITE(S) FOR PARTS: Newegg

PARTS PREFERENCES: Full Tower

OVERCLOCKING:Maybe, though most likely not. Not confident enough to OC.

SLI:Yes, two-way.

MONITOR RESOLUTION: 1025x768 at the moment, though I'd like reccomendations for a new monitor.

Other Comments:Cooling is important, and my greatest concerns are the case (wil it all fit?) and the power supply (does it have the right connectors?).

Parts List

Case: XCLIO A380BK Fully Black SECC 1.0mm thickness ATX Full Tower Computer Case - Retail

Power: COOLMAX CUG-950B 950W ATX12V V.2.2 SLI Certified CrossFire Ready Modular Active PFC Power Supply - Retail

Motherboard: EVGA 141-BL-E757-TR LGA 1366 Intel X58 ATX X58 SLI LE Intel Motherboard - Retail

CPU:Intel Core i7 920 Nehalem 2.66GHz 4 x 256KB L2 Cache 8MB L3 Cache LGA 1366 130W Quad-Core Processor - Retail

Video Cards: 2X EVGA 896-P3-1170-AR GeForce GTX 275 896MB 448-bit DDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail

RAM:G.SKILL 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Triple Channel Kit Desktop Memory Model F3-10666CL7T-6GBPK - Retail

CPU Cooler:ZALMAN CNPS9900LED 120mm 2 Ball CPU Cooler - Retail

Mouse:RAZER DeathAdder RZ01-00150100-R3M1 Black 5 Buttons 1 x Wheel USB Optical 1800 dpi High Precision Gaming Mouse - Retail

OS:Microsoft Windows Vista Home Premium SP1 64-bit for System Builders w/ Tech Guarantee - OEM

Thanks!

EDIT: Whoops, nearly forgot. Price right now is $1,605.86.

2nd Edit: Also, I;ve picked up a pair of these...1ST PC CORP. 8" 8-pin PCI-Express to PCIE 6+2pin - Sleeved (Extension/Adapter) Model CB-8M-68F - Retail

The 4890s are a fair bit more expensive than the GTX275. In my shopping cart, those 275s are showing at $170, due to a ton a rebate offers, coming out at $340 together. Also, any reccomendations on mobo?

One instant rebate or one mail-in? I'm not counting any MIRs, only the instant rebates.