Dynamic Id or Class names?

Here is another feature request :)

It would be great if we could dynamically set the id or the class name? In my scenario I am dynamically setting an Id for a component and storing the CSS values into a database. The page that presents the component could present multiple instances of the component. Each component has a different Id with different CSS values but the same CSS structure.

Example:

#@MyComponent.Id{
... my CSS here ...
}