Get Vista if you have memory not recognised by Xp is the general concensus i believe i.e. more than 3.4Gb
I cannot imagine new games not coming with DX10 these days but its a Console port so this may well affect it.
Yeah, any DirectX 10 support will likely be no better than what was seen in Crysis, Bioshock, Assassin's Creed or Far Cry 2. No reason to waste money upgrading to Vista for what should basically be no improvement.I am not sure and have no interest in the game but i have heard that the reason it has taken so long to come over is that it is not just a straight port but it has been upgraded and developed properly for the PC so they may have added some bells and whisltes however, it will not be dx10 in any sense other than bolted on rather than intergrated IMO.
Call of Juarez looked amazing in that Direct X10 benchmark demo, but it brought my overclocked 8800GTX to it's knees.*Waits for the dx9 could be hacked to dx10 levels comment for crysis.*
Only game i have seen that updated a dx9 game to use dx10 effects which cannot be done in dx9 is call of juarez, whether or not rockstar will put such effort as techland did for that game i do not know.
P.S, i love mentioning call of juarez btw.