Customer management

[csutton]

I guess this may be a little off topic, but I cannot find any other forum this would fit in... but its related to programming, so i'll give it a go

I'm curious as to what other programmers use to track their customers' information, contract/support contracts, and help desk stuff?

We are using Quickbooks to management invoices, and quotes, but would like to know any suggestions about the rest? I was considering writing a custom solution, but I am not sure if its feasible if there is something out there already.

Most products seem related to more services than software developers..

Thanks,
Chris