PSU 12v rails

[fullfat]

im just wondering if its better to have a PSU with twin 12v rails or to get one with 1 higher rated 12v rail.
i only run 1 cpu, 1 gfx card, and just one of each of these: dvdrw,harddrive and a fan.

what do you guys reckon?

 

[fullfat]

ahh chers mate, i was a bit concerned about having 2 low 12v ratings with only 1 gfx card you see as my card is rated to need a high 12v output.

 

[fullfat]

the 2 rails are rated at

18a and 15a, but both together are rated at 32a


cheers