I just bought myself some new ram (and mobo and processor). Needed something new to tinker with until the new Intel processors arrive and go a bit down in price. Also, I wanted ASUS Express gate so I can quickly surf in the morning before going to work.
The memory I bought was Corsair Dominator TWIN2X4096-8500C5D 1066MHZ. Tested them on both 5-5-5-15@1066MHz and 4-4-4-12@800MHz. Didn't seem like much difference on Everest in read and latency (have only demo, so I don't get all readings).
Any memory can fail, though I've never gone wrong with Corsair even when overclocking and using agressive timings on their value series. Corsair are known for high quality memory and good warranty for overclockers. Kingston is the ones I've had most problems with, mostly due to compatibility problems.
I would advice to look at timings@highest speed for your price point where you buy them regardless of memory brand. Unless you plan to overclock, then there is often wiser to buy memory that are tested on higher frequencies.
A good guide for overclocking memory btw:
memory timings explained