which duron to get 700,800Etc?

[Zipperhead]

building a new system for a friend,thanks

 

[osage]

if it will be overclocked, I'd say get the least expensive one you can, seem most of them will overclock to about the same range. if not overclocked get the fastest one your bud can afford

 

[ChipNOW]

Really try to strech the extra 50 bucks to a low-end Tbird IMO