Combine 2 workbooks together with multiple worksheets

Hi all,

I have been searching for ever now and can't seem to find what I am looking for...(maybe I am wording it wrong)

What I have to do is take Workbook 1 and copy all the data and paste it under all the data in Workbook 2... and do this for about 200 worksheets per workbook, all of them with the same titles.

So for example....

Take all of the rows with data in them starting with row 4, from Workbook 1, Worksheet 1 and paste them under all the rows with data in Workbook 2, Worksheet 1.

Then.... go to Worksheet 2, then Worksheet 3 and so on...

I program in Java, and know a little about VBA, but not nearly enough to get this hammered out... Any help would be greatly appreciated.

Thanks