Just got a new job(not a pilot job yet.. unfortunatly).. but it pays well so I'm bought myselft a small gift...

Yeah.. to complete my LCD setup, I bought a brand new Samsung 204b.. a 20" 1600x1200 LCD panel... (I already had the 2 17")...it's REALLY nice and I'm looking forward to use FS with my 3monitor setup...
RIght now, the left monitor is connected to my 2nd computer...
I have 2 choices...
1-Buy a decent PCI graphic card to drive my 3rd screen.. OR
2-Buy a new motherboard with dual pci-express and buy 2 PCIe card... (will be SLI... but to drive 3 screen, SLI must be disabled)
Anyone has experience running FS2004 on 2 separate video cards??? My current card is an GF6600GT AGP... and on the market.. most of the PCI cards are from ATI.. like RADEON 9250 and such...
I've had 2 cards in the past, but I never tried to run a 3d app on both...