Which of these is the better psu?

[realscot]

Which of these is the better psu? (Changed choice need to order tonight)

Thermaltake PurePower 460w
or
Hiper HPU-4k580 Type R 580w Modular

I'll be running (see my sig) and want to OC the X2 to about 2.6+ from the stock 2.2. (temperature/stability permitting) I've read that the Thermaltake has 54A on it's 12v rails.. sounds not bad. I wont be running SLI or Crossfire since i've got an asrock dual board so i really don't see the need for a mass of power. The thing that puts me off about the hiper is the fact that there seems to be lots of them selling second hand on a well known auction site... makes me think people are upgrading to better things.. I know i should really throw caution to the wind and get the Enermax Liberty 620w at £100 but it's £40 more than the hiper and twice the price of the Thermaltake, seems like it'd be a bit overkill in my machine too.
Anyway you guys are the experts, and have probably had experience with these psu's so i'd welcome your opinions.
Cheers.

 

[realscot]

In the next hour i'm gonna have to get a power supply ordered, my mate says whatever I get, get two of them cos he's needin one too. So i thought meet in the middle and order 2 Enermax Liberty 500W at £70+del seems to be good value and looks like it'll handle both our requirements.
Would the majority agree with my decision?

Just as a foot note my m8 is running an X2 3800 in an Asus Sli (not sure which one) 6600GT (aparently going to get an ocuk 7900GT soon) so that PSU should be plenty for him to, and should also leave him enough extra power so he could get another 7900GT at a later date i'm assuming? He just built it and intends to overclock it a bit... It'll be interesting to see who gets the better overclock.. My X2-4200 or his X2-3800 i guess superpi would be the best way to compare them? or

 

[realscot]

right that's it done 2 enermax liberty 500's ordered... £151 delivered... so me and my m8 are both happy. I found the trustedreview about the type r pretty funny but then the guy with the hiper that thought you were bashing him a bit.. go have a look on *b*y.com and you will see a whole lotta type r's for sale... wonder why that is??