Don't paint them at all, especially in a high contrast color (the graphite actually does looks nice). Painted wheel covers always look funny to me, it just screams "ricer". Save up and get some alloy wheels and then start looking at colors.
Hatch Nation #13 : Rally Revolution #13 : ROTM Jan '13
It's Bryan, not Brian
RSVT-170 Build in Progress
Derusting Rusty Build in Progress