List files in directory with option to download

I have anew project and I was wondering if someone could point in the right direction. I need to read in and list all the files in a directory, and then provide download capabilities for each file. I am not sure if datagrid, datareader, simple table, or other format I should use. I have not found a lot of real good usable information on streamers. I am not asking anyone to do it for me, but if you have an online reference or have done it before, I would like to know where or how.

Thanks,

MikeDisplaying files in a directory:

http://aspnet.4guysfromrolla.com/articles/052803-1.aspx

Better yet, an image gallery sample application in ASP.NET (shows you how to download the files too):

http://aspnet.4guysfromrolla.com/articles/081303-1.aspx