Thanks for the responses,
I looked at WBCS Pass, SIMS, iSAMS, Engage and Bromcom, I have seen the Opensource systems but as a one man band looking to hand the system over to someone else I thought an off the shelf system would be better in terms of getting support.
I had heard that Engage Support was a bit poor at times, although the Sales rep was very keen to sell the fact that they have revamped thier support system?