Here are a few posts on some fun stuff in System.Drawing that I found interesting. The first is a follow up to Omar Shahine's earlier post on a perf tip loading an Image from a Stream. The second I forgot to flag for follow up, but RSS Bandit has a nice local search which found it right away. Handy.
System.Drawing.Imaging performance fix in .NET 1.1 SP1 via shahine.com/omar/
Render PNG from ASPX via Chris Taylor
This one - a web control that generates rounded corner images on a table - is older, but slick nonetheless. Looks nice with the corners anti-aliased. RoundedCorners Web Control Update via Scott Mitchell