Help with an SQL query

[Gobi]

Not sure if this is the right place to ask.  I have a table, Weight, 
with the following test data:

idx  VBS_ID   Date            Weight
1    111111    10/3/2005    11.5
2    111111    9/5/2004      10
3    111111    10/7/2005    11.51
4    111111    10/8/2005    11.52
5    111112    10/8/2005    10.5
6    111112    10/1/2005    10.3
7    111112    9/28/2005    10

What I would like to do is to get the most recent weight for each unique 
VBS_ID.  So, in this case, I want a result of:

111111, 10/8/2005, 11.52
111112, 10/8/2005, 10.5

Can anyone tell me how to do this?  Thanks.