Hi, I have recently started using the Lego Digital Designer to build a waterway for a pirate ship set I have.  I am finding that some of the pieces that are in the Lego Designer program are hard to locate.  I am using some blue transparent plates to help make the water, and I have having a hard time finding anything like it on Pick-A-Brick through Lego.  I also know of Bricklink.com, but through a few searches I haven't found any there either.  Any suggestions for finding these bricks after I get my design finished?  Thanks.

select the individual brick in the ldd. the part number will appear at the bottom with a description of the part. Take that # to Bricklink   buy,  part, search.  

Thanks this definitely helped to refine my search.  I may need to change my project up though.  Some of the bricks i'm using are pretty expensive now.  Thanks again!