I need more I/O for my 001.

Ebay! Look for an analog-to-ADAT lightpipe converter. And make sure you set your sync source to ADAT when you try to record.

Behringer made an ADAT box that was pretty cheap, but not many around. The next cheapest ones would probably be the M-Audio Octane followed by the Focusrite, and Presonus boxes. Just do a search on 8 channel ADAT preamps, and you should find all the options.

The Behringer ADA8000 is only about $300 new so that's the cheapest route.

Get one of the toneport products and record into PTLE through the SPDIF connector. I do this with snares sometimes.