Sifus~

I'm currently building my gaming rig as follows:

i5 3470 (bought)
ASUS P8Z77-V LX (bought)
Kingston value ram DDR3 8GB (up for suggestion)
Best Graphic card within 700-850 range (please suggest:D)
HDD 1TB (I suppose whcihever brand doesnt rly matter. SSD perhaps an option in the future)
DVD-RW (doesnt rly matter
Casing (I suppose this doesnt matter also, i'll just choose whichever interest me)
PSU (thinking of AEROCOOL STRIKE-X Series PSU 600W 80 Plus Bronze = RM219 cos it looks nice. Or shld i go for something else?)
23" LED Monitor (60hz) (reuse from old rig)
MS Sidewinder KB & Mouse (reuse from old rig also)

Please recommend any changes i shld make from above
Thanks!