Hi. If somebody wants to respond offlist to this, that would be fine as I know it's veering off topic. I just priced an ibm thinkpad t23 and it's around $2435 with shipping, tax, etc. Of course, a used t20 would be half that price or less but I'm a bit concerned about being sure what i'm getting really works fully and warranties, etc. though I haven't ruled that out. What I want to know is: what about the other series of thinkpads? I understand that some of the series are less expensive than the T series but the T series is the only one i know about for sure as far as linux. I looked on google but some of the documents I found there are quite old so I couldn't reallytransfer the information to present models/series. Thanks. Cheryl