Is this a good or a bad idea? Looking for a cheap upgrade to my 3 yr old rig. Will this be a lateral move? Should I spend the extra $40 on the 1100 or just go with the 1090 and OC? My current rig is only modestly OCed, because the chip was always a hot one, and because this computer is on 24x7... I hate to spend the xtra energy while its idling. Would appreciate any comments/suggestions.