Alright well I just went through and added a bunch of stuff to a Newegg cart and this is the result:
LIAN LI PC-60APLUSII Silver Aluminum ATX Mid Tower Computer Case - RetailIt is an all aluminum design with a removable motherboard tray. It offers a 120mm in the front to bring in fresh air that also cools your hard drives. It has a side vent to help with the graphic cards (especially if you get two later down the road). I'm assuming its an 80mm on the top which will exhaust hot air as well as an 80mm on the rear that you can air duct from the CPU air if you want, it looks like.
Western Digital Raptor X WD1500AHFD 150GB 10000 RPM SATA 1.5Gb/s Hard Drive - OEM These are cheaper than the new VelicoRaptors and you might be able to find them somewhere else cheaper. Best Buy put these on clearance when they got the new ones but they are probably sold out at all their stores now.
Seagate Barracuda 7200.11 ST31000340AS 1TB 7200 RPM SATA 3.0Gb/s Hard Drive - OEMI like Seagate and they offer a 5 year warranty on this drive. You can replace it with another brand if you want, just make sure you don't get one of those new adjustable RPMs, I think Western Digital does it and calls it Green or something.
HP LP2465 Carbonite-Silver 24" 6 ms...ments - Retail From the specs it looks like a really good 24" monitor. You will just want to make sure to get an MVA or IPS panel as they give you true 8-bit colors. The cheaper TN panels give you 6-bit, which is somewhere around 216,000 colors and dithers the rest to come up with the ~1.4 million or whatever is in 8-bit. MVA also give give good refresh rates and not much input lag.
EVGA 01G-P3-1280-AR GeForce GTX 280 1GB ...o Card - Retail I firmly believe in the policy of best single card first then add a second later if needed. These GTX 280 start about $100 more than the 260 you listed so if you can spare the $100 get this instead. Don't fall for the gimmicky factory overclocked cards as I believe overclocking doesn't void your warranty with eVGA (I could be wrong but I know one of the big companies allows it. eVGA does allow you to change out the fan yourself without voiding the warranty. You just have to put on the original if you ever have to send it in for repairs.)
CORSAIR CMPSU-1000HX 1000W ATX12V 2.2 / EPS12V 2.91 Power Supply - Retail Certified 80+, modular cabling and designed by a wonderful company (Seasonic actually makes them while Corsair designs them). I'm not sure if the 620HX can handle 2 260s or 280s but if it can you can save green here and go for the tried and trusted 620HX instead.
CORSAIR 4GB (2 x 2GB) 240-Pin DDR2 SDRAM...400C5 - Retail Corsair is great. Lifetime warranties and good products. 4GB is the limit when dealing with 32-bit operating systems.
EVGA 132-CK-NF78-A1 LGA 775 NVIDIA nForce 780i SLI ATX Intel Motherboard - Retail Alright I choose this one over the FTW because I see very little difference, other than supported RAM speeds out of the box. I didn't see any 1200MHz 4GB kits of DDR2 so that's a moot point. If you absolutely need 1066 or faster, get the FTW and some faster RAM and it should only slightly raise your price.
Intel Core 2 Duo E8500 Wolfdale 3.16GHz LGA 775 65W Dual-Core Processor Model BX80570E8500 - Retail Alright like I said before I forgot that they did the price cuts so this is a great buy. Games with 2 games it looks like right now and World in Conflict is a blast.
$2,341.42 + shipping + any tax you might incur (I think you live in California so you would from Newegg at least)
Now if you need a copy of Windows Vista then tack that on. If you plan on overclocking the CPU pick up a good aftermarket HSF but I'm pretty sure people were hitting 4.0GHz on stock coolers with the E8200 and E8400. Your mileage may vary and not sure if you really need that extra boost or not.
You can probably find some of the parts cheaper at other places to save some cash just depends on if you have good experiences elsewhere.
edit: There's also $140 offered in different mail-in-rebates right now.