Upgrade to DDR?

[olds]

This month I will be building a new 'puter (socket A). I had planned on going, 1 gig AMD, Abit KT7 RAID and 256 MB PC133 RAM. Will DDR make much of a difference? I want something fast that will last me two years or better. Right now I have a Viper 770 Ultra video card that I will still use. Will this still work or do DDR MOBO's change things? I do a lot of online gaming and Photoshop work.
Thanks.
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Present Gateway system:
PII 400
the Viper
192 mb PC100
ISA 56k Modem
Intel(Seattle?)440BX mobo

 

[stuartb]

I myself am doin the exact same thing you are, gettin a new socketA system soon. Some of my advice firstoff: think about getting a KT133A board or a DDR board, forget about KT133.