I am not much of a .net fan but, I always wanted to do some ASP.net for web programming just to get a taste of .net, but was always lazy to install the entire VS.net because its too huge and my Compaq Presario 900 notebook aint got much harddisk space left after i installed linux as the other OS.
But, Microsoft in conjunction with some other companies have come out with a light weight version of ASP.net and the best part is that its free!!!
Visit http://www.asp.net/ and download this thing called WebMatrix. It is actually a mini asp.net IDE and a mini IIS like webserver. Its small but it has almost all the features that the IDE in VS.net provide for ASP.net