Upgrading from a Systemboard Socket A - AMD Athlon XP 1900+ Skt A - 512mb stick - 40gb hard drive - to a MSI K8N Neo2 platinum skt 939 - AMD 3000+ Winchester skt 939 - 1 gb (2x512mb) - 80gb SATA in raid 0 . Will there be a big difference in gaming and speed?