You can either print the above template on 4x6 papers, or use this plain version to print on your deck of index cards. Enjoy!
For those of you who can't get enough of templates, check out D*I*Y* Planner by Douglas Johnston and The Printable CEO by David Seah. Both sites are full of productivity ideas and downloadable templates. If you are so into index cards, also check out Mr. Hawk's PoIC (Pile of Index Cards) blog and wiki, you will be amazed by his systematic use of them to organize work and life.