PC build need help on which operating system to get

This is my gaming pc build and i was wondering if i need a 64bit o/s. Ill be playing warhammer online mainly.

SAPPHIRE 100251SR Radeon HD 4870 X2 2GB 512-bit (256-bit x 2) GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail

NZXT TEMPEST Crafted Series CS-NT-TEM-B Black Steel / Plastic ATX Mid Tower Computer Case - Retail

GIGABYTE GA-EP45-UD3P LGA 775 Intel P45 ATX Intel Motherboard - Retail

PC Power & Cooling S75QB 750W ATX12V / EPS12V SLI NVIDIA SLI Certified (Dual 8800 GTX and below) CrossFire Ready 80 PLUS Certified Active PFC Power Supply - Retail

Intel Core 2 Quad Q9550 Yorkfield 2.83GHz LGA 775 95W Quad-Core Processor Model BX80569Q9550 - Retail

mushkin 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model 996587 - Retail

Western Digital VelociRaptor WD1500HLFS 150GB 10000 RPM SATA 3.0Gb/s Hard Drive (bare drive) - OEM

XIGMATEK HDT-S1283 120mm Rifle CPU Cooler - Retail

Oh and name off a few monitors i cant decide on a monitor yet.
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  1. Good rig.
    **Make sure you get the bolt in kit for the S1283.**

    You won't "need" a 64bit OS, it's just that on 32 bit you are limited to only 3.5GB RAM.

    If your games, printers,etc have Vista x64 drivers and will run on Vista x64 then get Vista x64, else get Vista or XP.

    LCD? Any thing less than a 22" is probably a waste with that 4870 X2.
  2. Seems this post is taken care of.
  3. that 3.5gb of ram total on a 32 bit if you have a vid card subtract that from your system ram as well, no page filing either...3.5 gigs of ram thats it on a 32 bit system so if youre looking at a 2 gig card better go with the 64 bit os or you'll only have 1.5 avail for your os... and vista doesn't play nicely at that level.
  4. True true. That 2GB card will drop your available system RAM by a lot. You're better off with a 64bit OS.
  5. I wouldn't recommend Windows 8 due to the fact that it's FULL of background processes that not only takes up computing power but RAM as well. So, I would go with Any type of Window 7 64-Bit. ~Snowey
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