There are some contact details and links available to other sites that may help you.

http://www.ogc.gov.uk

Office of Government Commerce (OGC) has been set up to lead a wide-ranging programme to modernise procurement in government, and deliver substantial value for money improvements.

http://www.sopo.org

The Society of Procurement Officers in Local Government (SOPO) engages in a range of activities aiming to promote its strategic purchasing, contracting and suppliers function.

http://www.ted.eur.op.eu.int

Supplement to the Official Journal of the European Communities

http://www.cbconline.org.uk

The Central Buying Consortium is the largest local authority purchasing consortium in the UK.