How Do You Estimate Expire DN Traffic

HI All

I was wondering how do you go about personally estimating traffic for an expired domain name

So let's say for example there is a domain name that has the following

a listing in Yahoo and Dmoz
and around 200+ other links in search engines like AlltheWeb and Altavista,

I know you can check alexa.com for a ruff traffic estimate but it really is not much help on knowing how many visitors a domain name gets per day,

So what tricks do you use to determine traffic for an expired domain,

Any help would be great.

Thanks
Tom Dahne