TSQL Pivot with combination result

I have data in SQL server 2005 table similar to below format.

OrderNo ProductId Sale
----------------------
1          A    £10
2          B    £20
3          C    £30
4          A    £10
4          B    £20
5          A    £10
5          B    £20
6          C    £30
6          B    £20
7          C    £30

I need to write TSQL query that would give me result table in this format.

NoOfOrders     'A' SaleValue 'B' SaleValue  'C' SaleValue
------------------------------------------------
Prod A (Only)   1   £10     
Prod B (Only)   1               £20 
Prod C (Only)   2                             £60
Prod A & B      2   £20         £40 
Prod A & C      0   £0          £0             £0
Prod B & C      1               £20            £30

Any idea greatly appreciated.