i was in to pc gaming about 6-7 years ago, and new what was what so to speak in terms of componenets.but got no idea on todays hardware..thing is i have £1300 to spend on a new base unit will be needing every thing including windows.any ideas on what cpu,gpu,mb,ram ect...do i go sli or single?...any help will be much appreciated.....will be used just for gaming