There is a local retailer of housewares and small home appliances that works very hard to set themselves apart from the national chains, called Cayne's.
We recently bought some soda chargers (for making your own soda water) via their web site. Here's the nice confirmation e-mail they sent. First time I can ever remember getting anything like this.
If you combined this with Dell's order status updates, you'd have something really spiffy.
These folks do a nice thing with pets as well, which I have written about here.
