[JoeSloth]

I'd also like to throw this into the conversation:

Inline styles also prevent the user from overriding styles with a custom style sheet (think color blind people). This isn't necessarily against ADA/508 compliance, but it should be taken into consideration.

[gotchange]

Important flagged CSS declarations trump those inline style ones anytime of the day. Also, limiting the options available to your end users without solid and good reasons is not a sound strategy as it may prove inconvenient for them and endanger the product's image.