Hey! Something I might be able to help with...

Check out the "Geometry" link here:
http://homepages.svc.fcj.hvu.nl/brok/legomind/insights/index.htm

If you want to purchase bulk bricks, you could do so at an online auction. I would start at lugnet - the Lego Users Group NETwork:
http://news.lugnet.com/market/

Or, if you prefer to buy new from the source, Lego itself offers a discount on bulk brick sales to lugnet users. You don't even have to be a member. Check out this post:
http://news.lugnet.com/lego/direct/?n=3998

Though there is sometimes some confusion about placing orders online using this method, in which case it might work better by doing it over the phone. Just make sure you call during regular business hours (east coast). This is so you speak with a knowledgeable customer service rep and not a night shift order-taker.

lugnet member 169,
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-- Terry K -- 30Gb Smoke / Toyota 4x4 30Gb Amber / Bounder RV Pants first, then shoes