Linux and Intel's Hyperthreading

[nick lidakis <nick.lidakis@verizon.net>]

I was looking to replace my 1Ghz P3 and motherboard with  a stable,  but 
fast mb/cpu combo that was fully supported by a recent linux kernel. I 
was looking a an Intel 845PE motherboard with a 3.0Ghz cpu. My question 
is, how is Hyperthreading supported under linux? Is it a matter of 
enabling SMP in the kernel? Anyone playing with one of these CPU's?