2g2bt?
easy there scooter.
with the main bitcoin exchange offering high-latency trading there's pretty much non-stop frustration with the levels support you can expect to find from today's exchanges. coinsetter just got funding, maybe shoot them a note.
if you have time and aren't in the middle of looking for a paid gig, there really needs to be a solution to figuring out "price". mt. gox isn't "the price" anymore, especially with bitstamp and btc-e reflecting larger and larger percentages of the total pie. additionally, depth at one exchange will be different from others. it sure would be nice to see someone tackle this. some e-commerce merchants would pay for this type of service that would let them be able to update their pricing on their web shopping and checkout services.