I am upgrading from a Systemboard(think thats the mobo brand) skt A AMD Athlon 1900+ w/ 512mb ram and nividia FX-420 64mb and Sony 40gb ATA 100 - To a MSI Neo2 Platinum skt 939 AMD 64 3000+ w/ 1gb(2x512mb) dual channel and Radeon 9600pro 256mb and Seagate 80gb SATA in raid 0. How big of a difference will I notice in gaming and speed?