Well the 165 and 170 are the best value for money.
Ive been told they dont sell them either cause demand outpaces supply by about 3to1. That in itself should show how good these are.
Ive seen the 165 get pushed upto around 2.5ghz but only has a 9x multiplier.
The 170 ive seen nearly get upto 2.8/2.9 and has a 10x multiplier.
Ive been looking for these chips everywhere and the lowest ive seen the 170 is £295inc VAT, but i only know of one site in the uk that sells them and manages to get them in stock.
These (like the opertons 144 etc) are an overclockers dream. The equivilent chip you can get for the price of a 170 is the 4400+ but only has a total of 1mb cache, where the 170 has a total of 2mb cache and can overclock to a FX60 and slightly beyond, with the right cooling.
Im quite suprised that you havent heard of these Gibbo. If you get these in it means i can pretty much buy my whole next system from OCuk directly, which will save me some cash on postage aswell
For all of those wondering if you should hold off, i def would. I know im not getting my system unless i can run it around a 170.
Yeah the 165 has more bang for its buck, but i do a lot of rendering and gaming so the 170 would be worth the extra cash for me.