Need help buying chips - how many?

[CrazyN8]

Seems to be a lot of people around here with a lot of good advice/experience. I was wondering...

how many chips (denominations, etc) do I need to have an 8-10 person NLHE tourney. Right now I have like 350 Red, 350 white, and 50 black chips(which come out later) of the composite chips (i know, please keep the comments to a minimum [img]/images/graemlins/grin.gif[/img]). We usually have about 6 people but I would like to have room to grow.