Dual or Single Rail PSU for Athlon 64 on Neo2??

[mrnab]

Hi,

I'm looking to get an MSI Neo2 Platinum skt 939 with an Athlon 64 3200+.

I'm quite confused about which PSU to get but have narrowed it down to the Tagan TG480-U01 480W or the Enermax Noisetaker EG475AX-VE(G)SFMA 470W.
The former has one 28A 12v rail, the latter two (15A + 16A) rails.

My question is which would be best for this setup? I may overclock in th future.

Thanks.