Should this harddrive setup solve the lagg problems in shattrath ? 5 boxing

RAID 0: 2x WD VelociRaptor 300GB SATA 3,5" 10000RPM, 16MB OS AND MAIN WOW 1 map

1x WD VelociRaptor 300GB SATA 3,5" 10000RPM, 16MB 1 wow map 2 wow windows

1x WD VelociRaptor 300GB SATA 3,5" 10000RPM, 16MB 1 wow map 2 wow windows

4x WD VelociRaptor 300GB SATA 3,5" 10000RPM, 16MB