DataSets vs Collections
i still think there is a battle between those two. i heard there was some arguments going abt this in my office.. . anyhow i found some interesting artilce about this. worth to read so take ur time to read it.
http://msdn.microsoft.com/asp.net/default.aspx?pull=/library/en-us/dnaspp/html/CustEntCls.asp
I personaly prefer working with collections. it's making my development easy. find out why.