At my own test doesn't have to much difference. Try with your own way.
Update
There's a great tutorial about it (with test) in this document:
http://www.eps-cs.com/pdf/whitepaper_migrating.pdf More about it:
http://www.redware.com/download.html>Thanks for the reply,
>How about speed of data retrieval? (of course not including the conversion from recordset to cursor with oledb)
>Also I'm seeing that oledb supports more of the newer functions.