<< In a Word Yes.
On the other Word do you care? How long will you have that CPU and MB? 6 months a year.
Ken
>>
Damn, you took my one word answer!! Overclocking does shorten the component life, of course, but most o/ced processors/ vid cards, etc last years and years nonetheless. So yeah, it will decrease the component's life, but it won't really matter to you (unless you push it WAY too far).