OCZ vs. CoolerMaster vs...

[jtk]

This is based on what's available near me. Which would you choose (pretty much all will be overkill for my system, so it's more on price):

1. CoolerMaster iGreen 500W, $100 or OCZ PowerStream 600W, $90 (rebate)?
2. CoolerMaster iGreen 600W, $120 or OCZ GameXStream 700W, $115 (rebate)?
3. ThermalTake ToughPower 550W, $129 instead?
4. Mushkin HP-550, $89 instead?
5. Antec Smartpower 2.0 500W, $89 instead?
6. PC Power & Cooling Silencer 470, $109 instead?

Size does matter, this is going in a Qpack case (OCZs are 150mm long, so it will fit... don't know about the rest). My head is spinning from all the reviews I've been reading, so any advice is appreciated. The first 2 are at a store that's much closer to me than the rest. Also, mail order is out... I chopped up all my credit cards.

Edit: I think the PCP&C is #1 on my list currently. So maybe I don't need advice after all... Still, any thoughts appreciated.