Ok, worked out that with my rig and taking into account I want the PSU to last... I need around 600w (the calculator thingy said 573 with 20% extra to comensate for capacitor aging).
I've had some sporadic problems with my pc, and having checked the power on pc wizard as advised, the +12v rail is drawing 15 - 16v! Not good. It was only a cheap ez cool infinity, I thought it would do the job.
Obv. not. So yea, help needed because I don't know anything about power supplies. Want it to be very reliable / energy efficient / not going to kill my c etc. that's the #1 priority. Then noise but most psus I've seen are quiet anyway. Then modular is a plus when you're living in an antec p180. Also if it fits in a p180 thatd be great, they have this funny cage thing. But if I have to come up with another solution (I'm sure people have elsewhere already) then that's ok.
Just want this psu out of my system now! Heh