Do market orders that low automatically fill at the highest available price? If so, then that would seem a feasible solution.
This assumption have costed me $1,000 when my order got executed at a pretty low amount.
Even if Gox assured it would execute at highest possible price, be careful. And do not assume it from any other exchange, it just depends on how their engine is coded.
Yikes... so they filled your order below market value and it cost you $1,000? If that's true then it looks like I'm back at square one...