hi everyone, i want to build a new pc which will primarily be for gaming use and also encoding a lot of videos.
This is a spec i came up with:

Uploaded with ImageShack.us
I will be overclocking the i7 a bit and also i will probably SLI'ing the 580s in future. Based on this:
1) is the motherboard any good for overclocking and SLI? or would you recommend anything else?
2) will the PSU be enough for SLI in future?
3) is the gtx 580 i have selected the best option in terms of price and the manufacture overclock.
I will be gaming at 1920x1200
I don't need a SSD for now
I think thats all... Any advice/suggestions much appreciated, thank you
EDIT: also is there a cheaper case but same size? with good airflow? thanks
This is a spec i came up with:

Uploaded with ImageShack.us
I will be overclocking the i7 a bit and also i will probably SLI'ing the 580s in future. Based on this:
1) is the motherboard any good for overclocking and SLI? or would you recommend anything else?
2) will the PSU be enough for SLI in future?
3) is the gtx 580 i have selected the best option in terms of price and the manufacture overclock.
I will be gaming at 1920x1200
I don't need a SSD for now
I think thats all... Any advice/suggestions much appreciated, thank you
EDIT: also is there a cheaper case but same size? with good airflow? thanks