[TxMt] textmate: Tool Q. (off topic, frankly)

[Four Hewes, Caspian Design]

Folks,

I'll keep it short:
Anyone got a "newsreader" (desktop, NOT web app) that will put ALL 
posts to a subject in one ever-appended document that I can just 
scroll down to read? Something intelligent that will chop all 
quoting, signatures, header blather? Again, that's: ONE (growing) 
document per subject per email list. Thanks. From my subscribed 
reading, I figure this lists' members prefer well-tuned tools and 
someone may have a solution to share.