What are good software packages for tracking patron interactions?

What are good software packages for tracking patron interactions? By this I mean tracking which kinds of questions/interactions we're having* and when. (When done on paper, these are sometimes known as "tick sheets" or "tally sheets.")

*reference, reader's advisory, computer assistance, print/copy assistance, directions, &c.

Customization, handling multiple workstations simultaneously (while being able to aggregate or break them out as needed), and good statistical reports are all preferences here.

1. Alan Thomas II

• software
• patron-management
• statistics
• public-services

Comments

• 1. Alan Thomas II: Desk Tracker has been mentioned to me—I think it's the sort of thing I'm looking for—but I don't know enough about it to give a detailed answer to my own question.
• Ashley Nunn: Shopping recommendations like this one are off topic on Stack Exchange. See this blog post for more details.
• 1. Alan Thomas II: Shopping recommendations are off-topic on Stack Exchange unless a particular site decides otherwise (e.g., RPG.SE). Since my last question along these lines is still the most popular question I've ever asked here (and one of the top 10 on this site period), I though that this would be okay. (http://libraries.stackexchange.com/q/545/345) But perhaps we need to be asking the "recommendation question" question over in Meta.
• 1. Alan Thomas II: Incidentally, the problem with shopping questions is largely that they're too localized (not likely to help future visitors) not that they're off-topic (as library technology is on-topic).