Ok let me first make it clear that I don't operate a video editing system, but that I own a QX9650 and FX3700 which I use everyday, along with the RAID 0 system I have in place. I used open gl compliant card for years and personally for the little that they bring, they aren't worth the hassle, give me DIRECT 3D anytime. However that doesn't help someone who uses software solely design around open gl. This is something you should ask directly to the software vendor and not rely on in a forum. I don't belive the FX card will help you as I have always looked at CAD/DCC benches:
http://www.nvidia.com/object/IO_11761.html
The FX3700 is the same card as the Geforce 8800's, your paying the high price for the drivers, and I can tell you despite the high price tag are worth it for CAD/3D because nvidia write 2 booster drivers, powerdraft for CAD and maxstreme for 3DS max, which basically make all the difference when there is alot of geometry on the screen. See they both use the G92 core chip:
http://en.wikipedia.org/wiki/Nvidia_Quadro
http://en.wikipedia.org/wiki/GeForce_8
Also when you place them side by side and look at the PCB, you can't tell the difference. My point? Ensure this card will aid you in editing because it's expensive. You can SLI the 3700's, you can't SLI the 1700's.
Having said all that I found this at nvidia:
http://www.nvidia.com/object/workstation_software_partners.html#media
but no benches are provided, which suggest they brag about what they can.
As for RAID I suggest the adaptec 3085, it will accomadate 8 sata drives and has 256 MB cache memory, which is needed on with 4 drives or more as well as independant bios and specialist management hardware far exceeding on board controller efficiency and technology. If however you opt for a 2 drive RAID 0 setup, don't bother with an extra card like the adaptec, there simply won't be enough hardware to make use of it. I have always used seagate hardrives, SCSI, SATA etc. Right now the 500GB 32MB cache are good value. If your going to opt for something crazy like RAID 0 across 7 drives I suggest you put your OS on the 8th. Good RAID 0 gear is reliable but errors occur and theres no second chance with RAID 0. Then again if your backup plan is working, no problems.
Sorry I can't recomend an asus board, I have an GA-X48T-DQ6 gigabyte board, it overclocks like a mother and is rock solid reliable, also gigabytes factory forum at tweaktown is indespensible, they really have some great people providing excellent customer service like Lsdmeasap. My next mobo will be a gigabyte, they also do alot for the overclocking fraternity.
I have some Corsair DHX DDR3 1333Mhz ram which hasn't dissapointed me once, the overview: 9-9-9-24.....not the fastest RAM about but I can get my cpu to 4.5Ghz on a divider if I want, but I'm happy with 4.2. My suggestion to you is:
QX9650 oc'd to 4.2Ghz (you will need an after market cooler as the stock one is great but overlaps the RAM slots with 8GB on board on a GA-x48T-DQ6
GA-x48T-DQ6
8GB of the best RAM you can afford so you can run it 1:1 at 4.2Ghz
Consider: http://www.mushkin.com/doc/products/performance/
Adaptec 3085 runing 8xSeagate 500Gb 32Mb Cache Hardrives, running a 32 or 64K stripe on RAID 5. If you don't feel this will be adequate, email adaptec and see if you can run 2x3805 cards reliably and another 8 hardrives giving you a total of 16.
You will need a minimum 750W name brand cpu. I have a Zalman 750W, in your case I recomend the 1000W dual heat pipe solution.
I have a Cosmos S case, I dam well LOVE it. Massive 230mm side fan, radiator ready and independant fan mounted Hard drive CASES.
I would also suggest you look at Samsung's XL30 LED monitor which I will be purchasing as soon as I get a chance to go and look at one. Otherwise Dell's 3008 is a good mid range unit at less than half the price.
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