Check out the answer here. It uses the dt tag to deal with tab stops...
One of the answer's there uses the 'dt' and 'dd' tags in this solution but there is a lot of discussion around the correct way to present what is being done. Being fairly liberal, I can't find fault with most of the potential solutions offered but I think a lot depends on how much information you have that is going to be presented this way.
In the example given in the above post, the 'dt' option works well, but so does the 'span' option and I would suggest either is fine for one piece of data. If, however, you are presenting multiple lines of information (data?), then correctly formatted tables are the right way to go - semantically it would be correct and it would also be fully accessible.
I hope that helps a bit,
Edited by celticbrue (Sun 30-Oct-11 09:34:43)