Are these specs within reason

I do not know a lot about power supplies, but I bought a Rosewill 500-watt extreme edition. The reason I purchased this is because I needed something a bit stronger than my 400-watt psu to support a BFG 7800gtx. Besides looking cool as hell, the psu is black and has two blue led fans on the inside with a dial to change the fan speed. The 7800gtx cards require a lot of amps on the 12volt rail that my 400-watt couldn't really support, but the 500-watt easily supported. +12v@17a (400-watt) vs. +12v@34a (500-watt). So my question is do these voltage readouts sound right, or does it seem like my system is still drawing to much power.

MY POWER SUPPLY
3.3v @ 28A
+5v @ 30A
+12v @ 34A

MY CURRENT VOLTAGE
CPU: by_VID (1.40V)
RAM: 2.55V
Vcore:1.38V (which I assume is the cpu again)
3.3v: 3.30V
+5V: 5.21V
+12V: 12.26V

MY SYSTEM
AMD Athlon64 3000+ (Venice)
MSI Neo4 Platinum MB
2GB (4x512mb) Mushkin
2x 74gig WD Raptor 10,000rpm (Raid 0)
BFG Geforce 7800GTX