I'm PieFacePro, and I challenge you to take this arena and make it yours. Make a game out of it, build something in it, do whatever you want. Then, email me the world. After 1 month of this post going up, i'll collect all the entries and choose the best one to submit to the youtube show Minecraft Mapstravaganza under both our names (I'm on the choosing commitee, so It has a good chance of getting on) You can advertise whatever you want on the map, as long as it's good enough to win.

Instructions on participating:
1) Download the map, unzip it and put the folder in your .minecraft/saves folder.
2) Build your creation. Make sure you put your name somewhere on it so I know who to credit.
3) Zip the folder back up again and send it to me at piefacetoo@gmail.com

I wish you all luck with your building!