mitrisin,
Any of the Humminbird DI units will be able to do this as they all have both the DI and 2D sonar and can be viewed at the same time.

I would think that the 2D sonar will give you the best chance to see your lure(s) based on the larger sonar beam that it uses versus the thinner sonar beam used by the DI sonar. The Di sonar will be able to display clearer images of structure due to the narrower beam but there must be some boat movement for this to happen.