I've been building a MS Excel data file of information on the 110th Congress. It includes:
- Senators and Representatives: first, middle, last names w/suffix
- Party, State and district (if applicable)
- D.C. FAX, Phone, and address
- A special FAX number field for MS Outlook to use for fax merges
- email address (if applicable) and/or contact URL (if applicable)
- A separate spreadsheet for import directly into MS Outlook
- A General Description sheet.
After a lot of tinkering, I have it mostly ready. You can import one of the spreadsheets directly into MS Outlook. Then, you can produce email/fax merge documents in MS Word.
Warning: getting the fax merge to work well is sort of a pain and will probably be different for each fax installation. I don't even try to address that issue so you'll have to work it out for your particular situation.
Download it and let me know if it helps.
UPDATE I know what nuts you guys are about these things, so, Contacting Congress is the source for the raw data.