SiSoftware Sandra - Free software downloads and software reviews - CNET Download.com
If you want some more in-depth system information, download and install Sandra. Somewhere in it is a "hardware information" tab. It'll give you the chipset, driver versions, cpu/motherboard/ambient temps, etc. As far as your i7 860, you have 4 physical cores and 4 virtual cores (8 threads), for lack of a better word...see
Hyper-threading - Wikipedia, the free encyclopedia. It's part of the Lynnfield family
http://en.wikipedia.org/wiki/Lynnfield_(microprocessor). Here's a review on your chip:
The Intel Core i7 860 Review - AnandTech :: Your Source for Hardware Analysis and News
As far as your rig, unless it's an XPS (if memory serves), the bios is pretty locked down as far as overclocking options. Still, nice rig to frag on :)