Hi Ben,
you can find answers to your questions under this link:
Using a Desktop Computer as a LabVIEW Real-Time for ETS Target
http://zone.ni.com/devzone/conceptd.nsf/webmain/2B20D544723C8F2D86256E8C0071C201
The table contains some error which will be fixed in a few days. Then you can check this link instead:
PCI Hardware Support for LabVIEW Real-Time and Phar Lap Embedded Tools Suite (ETS)
http://digital.ni.com/public.nsf/websearch/B10BEE903891BC4286256E7D007B0D65?OpenDocument
Which will give you the most recent information about which HW is supported with which driver.
Hope this helps.
Regards
Stephan A.
National Instruments