Oh my, this little project is SO vulnerable.  Bitcoin offers something really, really useful to the poor little people of the world who need to "send some money home", sort of like hawala.  (Exchangers need to be found on both ends.)  But this faction alone could greatly increase bitcoin's spread; it could take it worldwide and ubiquitous.  This kind of honest use takes bitcoin higher.

Another group is organized crime, but now we're talking a lot of money at one time.  How would these guys buy enough bitcoin and sell enough bitcoin on the other end to quickly fit within their paradigm?  I don't think bitcoin is ready for big transactions in and out of fiat currencies.  Unfortunately, organized crime may see the bitcoin community as a bunch of chumps to be taken advantage of.  They could set up an online exchange or an online wallet company (think MyBitcoin.com), earn people's trust, and then pull the plug and disappear.  In fact, patience would be rewarded such that it would pay off to stay in business, grow the business until the community trusts you, and THEN pull the plug.  This kind of crime takes bitcoin down and quickly.

Bitcoin's price is very vulnerable to crime.  Look what happened when Mt Gox got hacked.