It's actually pretty easy once you get used to it. I create the levels in photoshop, so I can have each level on a layer, works well that way.
Ahh, now your're talking! ;)
Had a quick look at your blog and like the way you're doing the ant AI. Is this a well established technique or something you came up with? I haven't dabbled much in AI so I don't know.
Also, when can we play a demo? OK, I'm out of questions now, you'll be glad to hear :)
Welcome to the forums, BTW.