MAP manipulations

[Falb, John]

Are there any current designs or thoughts on modifying the output of a 5v
MAP sensor.
 
1. Moving the output up or down by a fixed amount over the entire operating
range.
 
2. Change the gain of the output up or down.
 
3. Not letting the output exceed 5v.
 
An example of one is here but it costs 300 and 500 respectively.
http://www.splitsec.com/products/arc1/arc1ds.htm
<http://www.splitsec.com/products/arc1/arc1ds.htm> 
http://www.splitsec.com/products/arc2/arc2ds.htm
<http://www.splitsec.com/products/arc2/arc2ds.htm>   
If you have any ideas please share.
 
John Falb