I agree with DropshipWholesalers, be very careful, I fell into this trap when I first started, sent money via Western Union to a company I had been talking to for weeks via email and yahoo only to find they were a bogus company. I should have done better checks.
Unfortunately I dont know why legitimate companies dont broaden their ways of accepting money as Paypal these days can be used by hundreds of countries even china as of December 2006 can accept Paypal. It would distiguish the legitimate companies from the illegitimate companies who are only out there to rip you off and there is a lot of them out there.
So take as many safe measures as possible, if you can try and steer away from these companies who only accept wire transfer or Western Union etc.
Thats just my thoughts anyway.