I keep reading over and over how folks computers doesn’t t run Vanguard very well.
Maybe this will help those thinking about upgrading.
I built these two computers for the sole purpose of playing Vanguard.My computer:
ASUS P5N32 SLI SE Deluxe motherboard
INTEL CORE 2 EXTREME X6800 2.93GhZ DUAL CORE
OCZ OCZ2G10002GK 2GB KIT (1GB x 2) PC2-8000 1066MHZ
Asus Silent Square 3-in-1 CPU Cooler
THERMALTAKE ARMOR VA8000BWS Tower
Antec NeoHE 550 High Efficiency 550W Power Supply
(1) SEAGATE 320GB ST3320620AS SATA2 7200RPM 16MB
Plextor 760A 18X DVD+-RW DL
EVGA  8800 GTX KO ACS3 768MB GDDR3 PCI Express Video Card (Driver 97.92)
BFG AGEIA PHYSX P1 3D GAMING CARD
MITSUMI FA-404 1.44 FLOPPY + 7 IN 1 CARD READER
Dell 30″ UltraSharp Widescreen Flat Panel Monitor
Resolution in game is 2560×1600
FPS are 50-60
Game options are at the Max settings

My wife’s Computer:
ASUS P5N32 SLI Deluxe motherboard
INTEL Pentium D Processor 945 3.40GHz
OCZ OCZ26672048ELGEGXT-K 2GB Kit DDR2-667 PC2-5400 Gold Gamer eXtreme XTC Edition
Antec True Power TP3-650 ATX12V 650W Power Supply
(1) SEAGATE 320GB ST3320620AS SATA2 7200RPM 16MB
MSI NX6800GTX-T2D256E VIDEO CARD
BFG AGEIA PHYSX P1 3D GAMING CARD

Both of these computers run Vanguard extremely well. Only 1 or 2 times a day do we ever crash to desktop. But we do play about 16 hours a day.
Hope this helps some of you.