Estimating ASP.NET Software Development Task Time and Materials

[VBDotNetCoder]

I am looking for a good document of spread sheet that can help me better estimate the amount of time and money a software development project should take. I am using .NET Framework I have been given the responsibility as team lead to give estimates on a series of project my team will be given. I am wondering without reading spending allot of time reading books is there something on the web now either a tool or a formal i can use as a bases to increase the accuracy of estimate the amount of time it will take to built ASP.NET application using VB.NET