Choosing between two builds...opinions, plz

horsepower288

Distinguished
Aug 18, 2006
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build 1.
Gigabyte GA-965P-S3
INTEL Core2 Duo E6400
CORSAIR TWIN2X1024-6400C4 (only 1 gb, money constraints, could double it next year)

build 2.
Gigabyte GA-M55plus-S3G
AMD Athlon 64 X2 4600+ BOX (AM2)
GEIL Ultra DDR2 kitt dual channel 2 x 512 MB PC 6400 - GX21GB6400UDC
(2 of that to have 2 gb)

the two builds have virtually identical prices, but i really can't make up my mind whether to go for the core 2 duo fever or to have 2 gb ddr2...
hope you can give pros and cons for the two builds. thank you.