What do you guys Think. Please let me know.

Hi. I'm planing on building this PC in couple weeks, maybe after the HD 5000 series comes out. (hoping the price will be dropped).
I'm really trying to stay around 1000$.
Please let me know what you think.
And any suggestions would be greatly appreciated.
I think latter on i'll be getting a 2nd GPU and doing Crossfire.
Please and Thank you.

Mobo.
ASRock X58 Extreme LGA 1366 Intel X58 ATX Intel Motherboard
http://www.newegg.com/Product/Prod [...] 6813157163

Memory.
CORSAIR XMS3 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333
http://www.newegg.com/Product/Prod [...] 6820145220

Case.
COOLER MASTER RC-690-KKN1-GP Black SECC
http://www.newegg.com/Product/Prod [...] 6811119137

GPU.
XFX HD-489A-ZDFC Radeon HD 4890 1GB 256-bit
http://www.newegg.com/Product/Prod [...] 6814150359

PSU.
Rosewill Xtreme Series RX850-D-B 850W Continuous @40°C ,80 PLUS Certified
http://www.newegg.com/Product/Prod [...] 6817182070

CPU
Intel Core i7 920 Nehalem 2.66GHz LGA 1366 130W
http://www.newegg.com/Product/Prod [...] 6819115202

DvD.
LG DVD Burner Black
http://www.newegg.com/Product/Prod [...] 6827136167

HDD.
Western Digital Caviar Blue WD3200AAJS 320GB 7200 RPM SATA 3.0Gb
http://www.newegg.com/Product/Prod [...] 6822136098

Please Please Please, help me out. Let me know what i can improve or change.
I'm trying to stay just around 1000$

Thanks

Rosewill PSUs arent great, i suggest the 750TX from corsair its the same price after MIR and corsair is known for significantly better PSUs than rosewill
http://www.newegg.com/Product/Prod [...] &Tpk=750TX

A samsung F3 will outperform the caviar blue easily for $2 more and provides 500GB of storage space
http://www.newegg.com/Product/Prod [...] F3%20500GB

Normally i would say dont forget to combo, but there are no good combos this month at all, im rather disappointed, some good ones should show up next week hopefully once they redo their combos.

edit: think less type faster

Thanks to all of you for your suggestions. Still trying to work things out .
So far, i have changed the HDD, and the PSU.

I was thinking about i5 750, But because of the lack of Hyper Threading won't it lower the performance?, and is there a chance that it might bottleneck with 5870?