|"For me going from 3.4 to 3.8 is a very big jump and I have no desire to go any higher. I do not believe in tempting fate"|
You are not tempting fate. Black Edition CPUs are offered as a "gift" to overclockers/enthusiasts. Here's was what AMD says about it's Black Edition CPUs - "designed to help you unleash the maximum potential of your system with tunable performance that delivers enthusiast-grade megatasking and phenomenal features at the right price."
A 400MHz increase to a 3.4GHz CPU is roughly a 12% overclock. That's not bad, but it can certainly go higher. And if you leave Cool 'n' Quiet enabled along with the CPU's built-in thermal protection, you'll have very little to worry about in terms of "tempting fate".
I've been overclocking CPUs since the socket 7 days when I clocked my Pentium 166MMX up to 233MHz. And I've overclocked every single system I've owned since then. I have NEVER fried a CPU due to overclocking. Some folks claim the overclocking reduces the lifespan on the CPU, but realistically, how long is a CPU expected to be in service before it's considered outdated? 5 yrs?