I found these sites and thought I'd share http://sendcare.com/military/index.htm
http://www.brandonblog.com/A_Soldiers_Blog_Care_Packages.html
I actually have the first link saved as favorite. I haven't use it yet, but it looks like a good site. I'll use it soon though!
I just used the Send Care one. I think it was a pretty good deal and I did the design your own mini.