Right now I'm developing in C# on VS 2005 Pro with SQL Server Pro. I'm thinking of popping over to VC# EE "Orcas" Beta to get a head start on learning C# 3.0 and Linq.
This project is so simple, I could probably finish the first draft in a day. The only reason I haven't is because I was trying to do everything with Data Bound controls, and I really don't have the time to be figuring that out right now. Over time, I expect to add features to it to create some basic report generation. I won't get too much use out of the project personally, as I have access to Team Foundation Server, but I expect a number of people might like something like this. I know at least one guy in #gamedev who was looking for something like this.
It's WinForms right now, with no plans to do a web-based interface.