Tweaknews.net has released another review, this time on the Sintek 500 Watt Premium SLI Ready Computer Power Supply

Well, there you have it. It certainly appears that SinTek has brought a real winner to the PSU market. The 500 SLI has great looks, a superior feature set and, most importantly, outstanding stability. I've tested a number of power supplies, and I haven't seen one yet that was more stable than this SinTek offering. Availability is quite good, but you better have deep pockets. With a retail cost of around 160 USD ($190 for the 600W model), this is a very expensive 500W power supply.

Sintek 500 Watt Premium SLI Ready Computer Power Supply Review