I'm really getting into Bryce now and discovering all the different options that it has - which leads me to the question - what do you do when you run out of colors to attach your objects with?  For instance when doing my last render I had more objects in the scene than allowable colors that could be assigned to them?  I suppose I'm asking if there was a way to add more colors so that I could assign them to additional objects when I run out of the color assignments that are already listed.

Or does that just mean that I have more than enough objects in the scene already - LOL!

 well, i wouldnt suggest giving every individual object a different color. Usually it makes more sense to use colors to divide your objects into distinct "classes" that share a particular feature or purpose in your scene. For instance objects with an often used material.
Its not possible as far as i know to keep adding new colors beyond a certain amount.

As for the amount of objects bryce can handle, well.. it can handle tens of thousands for sure so that shouldnt have to be a problem.

If i need my objects to be really organized i just make sure i give good clear names to objects and groups and such.

Yup, Bryce needs more color families. And yup as Rayraz states, since there are a limited number of colors, I will normally only use the color families to "group" together meshes that have the same exact Mat.

Daz should switch the colors to numbers, that way we could have as many as we need.

AS

I usually only use family colours to identify boolean groups.

You can actually make your own colours to use for families.
Selecting the 2nd icon on an object's  icon tower will bring up the family colour selector - a box with lots of little coloured boxes in it  (You've obviously done this already) - at the bottom of this is a dark rectangular area. Clicking this will bring up a colour bar from which you can selct any colour you want. After selecting a new colour you will find it has replaced the colour that was in the 1st little coloured box - which was black IIRC.
Clicking this new colour will apply it to your selcted object. Hey-presto - new family colour!
However, whether or not this means you will have extra colours available I have yet to find out. When I have finished working on a group I usually revert the family colour to grey to free up the available colours.

I use the family colors to divide into groups of objects such as: a color for all your trees, a color for terrains, color for rocks and so on. Then it's easy to select the family color for the group you're interested in and then place that selected group in solo mode. This simplyfies the scene by getting rid of the clutter and it then should be easy to single out the individual from that group.