Delete duplicate rows using data in column A as criteria

Hi all,

I have a spreadsheet that has thousands of rows of data with maybe 6 columns.

I would like to remove the duplicate rows but the problem I am facing is that I would like to use column A as the criteria.

There are some duplicates in column A but the issue is that the data in column B, C, D, etc may not be the same for each duplicate.

Easier to see in this image:
http://img127.imageshack.us/img127/6364/datajv6.jpg

So A1 is the same as A6
A1 has data in B1 and C1, no data in D1
A6 has data in B1, C1 and D1

I need to delete either row A1 or row A6, it is irrelevant which row it is but one of them has to go.

I am not very good at excel and VBA is way over my head so any help is appreciated.