cmarshall - 5:58 pm on Mar 23, 2007 (gmt 0)

1) Welcome to WebmasterWorld!

2) Redundancy is one of the best ways to ensure usability. As long as it is tastefully and properly done, then this would probably be called a "best practice." I know that Amazon has "Buy Now!" buttons all over the place. I get a lot of stuff from them, and consider their cart to be about the easiest to use anywhere.

Of course, a cardinal rule of redundancy is also consistency. Don't have the button on top say "Buy the below items", and the bottom button say "Buy the above items". They should both say "Buy this item" (or something to that effect), and they should each look exactly the same.