Also just another general tip on making smooth things - if you want a large area to be smooth it can be better to build it as one large surface instead of in little pieces, see these examples here:

http://moi3d.com/forum/index.php?webtag=MOI&msg=1398.18
http://moi3d.com/forum/index.php?webtag=MOI&msg=1398.19

The exception to that is if you have an area of the surface that is switching directions by going into a tight bend - areas that are tightly bent between 2 larger forms are usually better done as fillets between 2 extended surfaces rather than trying to build one surface that goes through too many shape changes in it.

- Michael