security software??!?!?
Viruses are just a myth. It's the MAN trying to scare you.
I would spend 700 on a monitor
50 for comfy mouse and keyboard (cuz you gotta be comfortable for those late night obsessions)
70 processor
30 ram
40 hd drive
40 psu
50 mobo
30 GPU
300 On really nice looking case
100 OS
500 for 7.1 speakers