Have you heard about Uni-Form? Go look at it now. Isn't that a very nice, functional and compelling HTML form? It is also xHTML valid and accessible! Uni-Form is quite possibly the nicest looking form markup out there.
Matt Quackenbush, also Kalendar Team Member, developed and released a set of custom tags that produce the Uni-Form structure. Build awesome, functional forms fast!
Thanks for your work Matt! My forms, and my fingers Thank You.