So.... on some more testing. If anyone is curious, the ram in the 6610-48 is a single PC2-5300 512MB REGISTERED ECC DDR2 667 SORDIMM. Also if anyone is curious, it will not fully boot with a non-ECC 1GB SODIMM. It does go into the initial memory test menu though and there is an option in that menu to disable ECC but I did not try it as I'm not sure if that is just for testing or if that is a function that "sticks" and would allow you to run non-ecc ram in it. Personally I doubt upgrading it to 1GB or more of ram would have any benefit but who knows. It might actually run slower or boot slower due to having to test/address more memory, it might work fine and see it but have zero benefit and no realistic effect at all, it might even ignore it if the code is written in a way that the amount of ram to be addressed is hard coded. If I had a registered ECC 1GB stick I'd stick that in and go with it but I've rarely ever seen small form factor ECC ram so that is not something I have laying around. Its mostly only used in blade servers...
I have a Kill-a-Watt here and sitting idle with just a single gigabit port connected, and both power supplies going through the kill a watt it is showing right about 1.15A, 122 watts, .90 PF. So its right in line with what fohdeesha put in the original post. I could make a cord up and clamp it with a Fluke but I just dont see that being necessary. Somewhat surprisingly at boot with the fans running full tilt its only about 75 watts so those little fans are pretty darn efficient. I figured with those little buggers screaming that it would have been higher. Obviously many of the chips are not started up yet during boot but once booted it settles down and the main cpu and other chips are all running its right on what he said it would be.