PSU: 750w should be safe, try seasonic or corsair
case: azza solano 1000, or hurricane, or similar. Get a full tower
motherboard: intel for performance, amd if you're a bit more on the budget side. p8z68 series would be nice if you're going intel, lx should be more than enough, your pick on the price and features
cpu: i5 2500k suggested as a sweet spot; intel for performance, amd if you're on a budget.
ram: 4gb, or 8gb if you want more just in case for photo/video editing or rendering. I'm using g skill ripjaws, decent price for what you get.
ssd: 160gb intel 320 series is on sale right now. intel and crucial are regarded as the more reliable performance brands at the moment: blazingly fast and stable.
dvd writer: get whatever's on sale, usually a samsung or lg. It'll do its job for about $20-30
You should be able to get that for under 1 grand, maybe not including that video card of yours hehe. Just my suggestions from my own research and preferences. Some links to what I'd get down below.
My own setup if you want something of a reference (it's relatively up to date):
i5 2500k (k = unlocked multiplier, you can overclock it) $200
p8p67 deluxe $200
x-fi titanium hd sound card $150
HD 4850 video card, bit old, will be updating next.
g skill ripjaws 1600mhz, 2x4gb $50
2x caviar black 600gb, 1x caviar green 2tb, 1x agility 3 ssd 60gb $100(crapped out on me, in RMA process), crucial m4 120gb $200(going strong, swapped over to my laptop for now)
seasonic m12d 750w $100
azza solano 1000 $70
NCIX.com - Buy Intel 320 Series GEN3 160GB 2.5IN SSD SATA2 Solid State Disk Flash Drive Retail W/ Bracket - Intel - SSDSA2CW160G3K5 - in Canada
NCIX.com - Buy Seasonic X760 Gold ATX 12V 24PIN 750W Active PFC 80PLUS Gold Modular SLI Ready Power Supply - Seasonic Electronics - X-760 Gold - in Canada
NCIX.com - Buy Corsair Vengeance CMZ4GX3M2A1600C9 4GB 2X2GB DDR3-1600 CL9-9-9-24 Dual Channel Memory Kit - Corsair - CMZ4GX3M2A1600C9 - in Canada