>In some cases, 64 bits won't buy you anything and may in fact run slower than 32 bit. You really only need to go to 64 bits if you have large memory needs.

So, I assume the vote would be to use the ODBC, because the prime reason is that it is faster and supported, which will not be the case soon with the OleDb provider. Thus, this means we would compile in 32 bits for that single project.