We also got lots of replies on Twitter:
cheshirefarmart Angela Bowcock
@WiREUK we use ACT to record all our advertising sales & keep client records. Easy to customise & owned by sage so poss use with accounts.
yours2share Sophie Garrett
RT @suffolkclean: RT @WiREUK: Can anyone recommend a good CRM system? Salesforce.com & Zoho often mentioned
juleswymanuk Jules Wyman
@WiREUK have you used http://bit.ly/jJ11vZ
it's brillliant and easy to use .
tygerpr Caroline Garbett
@wireuk have used 3Si Open Market for large scale membership comms, sales, events, personal records, exam results, etc - http://ow.ly/4RZdF