Hi David,
There was a message on the same topic in July. Search through the newsgroup for TIGER.
Basically, if you can get the data in Shapefiles, you can read it into Map, and not lose any functionality. I have done the same sort of thing for a client here in New Mexico. This data even has entries for addresses on the left and right side of a road, so you can do a little bit of address location with such data.
Cheers,
David Walsh