City name suggestion: Last Llamas (since the region is kindda post-apocalyptic) When placeing megatower, remember that they are essensially a T intersection underneather, so cars can drive right trough them. This means you dont need to draw roads around it, avoiding the need to the ugly box around them.
Started on Designer Centric Simcity series this morning... its now 02:00... This is addictive :D
I think you should go though the cities and make power only come from Twain, water only from Riverbend, make Twain do recycling for all towns, but make breakman's do garbage and so on. It's more effecient and you can control where you're dirty stuff goes.