I've put the first four articles on the subject of using Drtongly Strongly typed objects to represent your business Data on to my blog, they are as follows: -
Part 1: Reasons for the Switch
http://weblogs.asp.net/plip/articles/111121.aspx
Part 2: The Strongly Typed Object
http://weblogs.asp.net/plip/articles/111125.aspx
Part 3: Populating Objects and Collections from Databases
http://weblogs.asp.net/plip/articles/111126.aspx
Part 4: Sorting and Filtering Strongly Typed Collections
http://weblogs.asp.net/plip/articles/111127.aspx
As ever, if you have any questions, queries or suggestions please don't hesitate to get in touch either via the contact form or directly to phil@winstanley.name