Neil,
You can use RDA (Remote Device Access). This can easily be set up in MAX under the folder labeled "Remote Systems".
The following Knowledge Base articles have more details on what is RDA and how to use it.
What Is Remote Device Access (RDA)?
http://digital.ni.com/public.nsf/websearch/5CC9792C6CD4A34C862565BC0072D5DF?OpenDocument
How Do I Network Two PCs for Remote Data Acquisition (RDA) Using NI-DAQ Traditional 7.0?
http://digital.natinst.com/public.nsf/websearch/38C5D1491654D544862566EA004ADAFA
Regards,
Justin Britten
Applications Engineer
National Instruments