Help with caption nightmare??

[justletmein]

I am desperately trying to get a simple result from captions, and am on my third hour of dead-ends...

The result I am attempting to achieve:

Figure 1: This is the caption title. This is the body of text for the caption.

Note the "Figure 1" is bold, and the text is not, but the "This is the caption title." is part of the caption so that it will be displayed in the list of figures.

What will be shown in the list of figures:

Figure 1: This is the caption title.

What this comes down to is applying two styles for one caption - is this even possible?