Finishing new computer build- need hd, gpu, and optical drive

[theicfire]

So this is what I have bought so far from newegg (screenshot of checkout)
http://img512.imageshack.us/img512/2351/cartir0.jpg

I now need a video card, harddrive, and optical drive. I think I have what I want, but I just wanted to check if these would be ok (hopefully playing crysis medium settings 1680x1050)
SAMSUNG 22X DVD±R DVD Burner with LightScribe Black SATA Model SH-S223Q - OEM -- looking for the cheapest that works
Western Digital Caviar SE WD1600AAJS 160GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM -- looking for the cheapest that works
MSI N9600GT 512M OC GeForce 9600 GT 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Retail --Want to play crysis a bit 1680x1050


What do you think(Mainly on the new stuff I have to buy, but comment on the stuff I already bought if you want)?

Thanks