My company is converting to the 2.0 framework (hopefully soon). This would be a good time to re-evaluate our N-Tier design. Currently we custom build everything. I thought it might be a good idea to check into Microsofts application blocks for some of our issues. The blocks that look the most benefitial to me are the data access block, the exception block, and the logging block. I would like to know if you use the blocks in your company, and if you do, which ones, and what you think of them. Thanks.