Need help with odd noise from my civic!!

WEll i'm not sure what it is but if i were you i would start with the front suspension. you should lift up your car crawl under it with a flash light and check around the sway bar and such for shiny spots. if you find any thing shiny that could be the source of your noise. also next time it happens try to figure out what side the noise is comming from that will narrow down your search area.
also look for signs of oil around your front struts. a weak or bad strut could cause the vehicle to dip and rub during accelleration

anyways thats all i can think of right now

good luck
dent

Ps. what size rims do you have on there? they could also be a factor