A Formula That References A Table Based On Contents Of Another Cell

Here is what I am trying to achieve:

I have a workbook with two tabs, on the first one there is one column and the top of the column(A1) is a dropdown containing the options 'Boy' or 'Girl'.
One the second worksheet I have two named tables (Boy and Girl) - these tables each contain a single column array with 5 names in each (so we have a table of 5 boys names and a table of 5 girls names)

What I want to happen is when a user selects an option from the dropdown in A1 the cell below(A2) is populated randomly with a name from the corresponding list.

I have achieved this initially using the following formula:
=IF(A1="Boy", INDEX(Boy,RandInt(1,10)), INDEX(Girl,RandInt(1,10)))

This works fine, but I will need to expand this for several dropdown options, so my new workbook will have a dropdown of car makes, and each make will have a list of the models associatied with the car make (e.g. Ford: Fiesta, Escort, Mondeo...)
But I do not want to have a ridiculously long nested IF statement for every car Make, so what I want to do is something along the lines of the following:

=INDEX([CONTENTS OF A1],RandInt(1,10))

So I use the text selected from the dropdown in A1 as the TableName in my formula - however, I cannot retrieve that to use in the formula without it coming back as a text with the "" included and my formula errors!