Update:
Here is a sample from those logs. Everything seems to look OK.
MP_DriverManager.log\
Executing Driver Request - Match MP_DriverManager 7/9/2008 3:02:45 PM 5100 (0x13EC)
Response message sent to the client MP_DriverManager 7/9/2008 3:02:46 PM 5100 (0x13EC)
Executing Driver Request - Match MP_DriverManager 7/9/2008 3:03:13 PM 5100 (0x13EC)
Response message sent to the client MP_DriverManager 7/9/2008 3:03:13 PM 5100 (0x13EC)
Executing Driver Request - Match MP_DriverManager 7/9/2008 3:07:18 PM 2168 (0x0878)
Response message sent to the client MP_DriverManager 7/9/2008 3:07:19 PM 2168 (0x0878)
Executing Driver Request - Match MP_DriverManager 7/9/2008 3:10:49 PM 5100 (0x13EC)
Response message sent to the client MP_DriverManager 7/9/2008 3:10:49 PM 5100 (0x13EC)
Executing Driver Request - Match MP_DriverManager 7/9/2008 3:16:21 PM 5100 (0x13EC)
Response message sent to the client MP_DriverManager 7/9/2008 3:16:22 PM 5100 (0x13EC)
DriverCatalog.log
CreateFromINF("\\s-netapp01\imagevol01\Drivers\GX520\Chipset\extract", "852.inf") DriverCatalog 7/8/2008 12:03:39 PM 5516 (0x158C)
Initializing driver digest from '\\s-netapp01\imagevol01\Drivers\GX520\Chipset\extract\852.inf' DriverCatalog 7/8/2008 12:03:40 PM 5516 (0x158C)
Successfully initialized driver digest. DriverCatalog 7/8/2008 12:03:40 PM 5516 (0x158C)
Returning 1 driver definition. DriverCatalog 7/8/2008 12:03:40 PM 5516 (0x158C)
CreateFromINF("\\s-netapp01\imagevol01\Drivers\GX520\Chipset\extract", "855.inf") DriverCatalog 7/8/2008 12:03:44 PM 4360 (0x1108)
Initializing driver digest from '\\s-netapp01\imagevol01\Drivers\GX520\Chipset\extract\855.inf' DriverCatalog 7/8/2008 12:03:46 PM 4360 (0x1108)
Successfully initialized driver digest. DriverCatalog 7/8/2008 12:03:46 PM 4360 (0x1108)
Returning 1 driver definition. DriverCatalog 7/8/2008 12:03:46 PM 4360 (0x1108)
CreateFromINF("\\s-netapp01\imagevol01\Drivers\GX520\Chipset\extract", "865.inf") DriverCatalog 7/8/2008 12:03:51 PM 1444 (0x05A4)
Initializing driver digest from '\\s-netapp01\imagevol01\Drivers\GX520\Chipset\extract\865.inf' DriverCatalog 7/8/2008 12:03:52 PM 1444 (0x05A4)
Successfully initialized driver digest. DriverCatalog 7/8/2008 12:03:52 PM 1444 (0x05A4)
Returning 1 driver definition. DriverCatalog 7/8/2008 12:03:52 PM 1444 (0x05A4)
I am now going to try to add the "Apply Driver Package" task and point it to the NIC package that I made which contains network card drivers for all of the machines. I am leaving the "Apply Device Drivers" task in there as well because I figure it can't hurt.