Hehe, you're a step ahead of me because I thought about the same thing with the diagonal roads. I'll download those textures and give them a run tomorrow. Thanks for the sign design also. I'm currently working on another zone with snow and deeper water.
I've also corrected the SE Corner of Arena but I'll wait to e-mail it to Edgar to see if anymore bugs are reported. No sense in clouding up Edgar's e-mail everytime there's a bug fix. I'll wait a day or two and see if more need to be corrected before sending the file.