Did you choose that psu because of its dual 12v rails or is there something I'm missing about the xfx one??
I'm gonna be using the hdd from my old pc, and why that case??
Thanks very much for your help so far... I hope its not too many questions..
I'd think you'd need that PSU not because of multiple 12v rails but because that's what you NEED in terms of cooling your system and I don't really like XFX... ~ Get a 500gb HDD probably all you need if you want an SSD you probably can't fit it in your budget... stick with a 250-500 GB HDD IMO. Good luck on picking out your parts!
I'm using dual 12v rail 620 W PSU and I have an i5-2400 so I think a 600W PSU should do you good.