i play HL2 and Bf2 and pretty much nothing else but i'm going to upgrade my monitor to a 20" or 24" widescreen so I wondered what's the best resolution my x800xl would be able to play those 2 comforatbly at medium-high settings with 2XAA. Currently it runes BF2 and HL2 fine at 1280 by 1024 and I don;t see the point in buying a new card with vista around the corner and me spending 75% of my time in PS and firefox. 
