there is potential for a scam with bank transfer, which happened to a few computer component suppliers a few years ago,
scammer (posing as a customer) asks for supplier's bank details, pays a duff cheque into the supplier's account at a branch, payment appears on the account immediately as a debit (although not as cleared funds),
scammer phones supplier asking for delivery date and says they are not fast enough and asks for an immediate return of the transferred money, supplier tranfers money via telephone or internet banking,
a couple of days later the original cheque paid in by the scammer bounces,
simple solution, check the funds have cleared,