I posted my own a while ago:
http://www.planetside-universe.com/s...ad.php?t=52906
I think a logistics system doesn't have to be horribly complicated. It can be pretty simple. The only time it should really come into play is when people either deliberately cut off your supplies, or if your army gets so bloated that you need to run additional logistics support to keep it in the field.
Casual players aren't badly affected by that unless they try to zerg. Fielding a giant army shouldn't be the easiest way to go, it should come with significant challenges.