I agree, the thinkpad 600E is a great value.
Look for the 2645-CBH model, it has a dvd/cd rom drive.
The thinkpad I purchased used included the port replicator, wifi card, ethernet card and external floppy drive in addition to the DVD drive and a case for $ 220. The reseller did advertise the battery as marginal and a new one was needed so I could update the bios from ibm site.
Here is the link to IBM pc support for anyone that has not seen it.
You can d/l the repair manuals.http://www-307.ibm.com/pc/support/site.wss/pageRedirect.do