I put up a quick picture in my garage that I made up in Paint of what I'd like my Aveo sedan to look like. I edited the grille to also look like I'd want it.
First off, the gold on the chevy bow tie has to go. It doesn't match anything else on the car. I attempted to make mine look like chrome. Somewhat successful, but I think leaving the chrome around the outside of the bow tie and painting the middle black like g0ast did would look nice. Overall, I like g0ast's grille, looks very clean.
I kept some of the chrome for the frame of the grille, but took the chrome bar in the middle out. Its got no business being there, I think.
I haven't really looked too much into taking the grille apart yet. I've been pretty busy with med school. Let me know how it turns out boxkiller. Hopefully I'll be able to start doing a few things this next summer when I've got a couple months off from school.