I'd hope he's looking to get good players that will improve the squad we've got for as little as possible, and free if possible. Ellis, Raynes, Grainger and Ibhere have probably been the best signings we've made in the past 4 or 5 seasons, and their transfer fees haven't broken the bank. I think Curle is quite astute in the transfer market, and his ideas of getting players in on fairly short incentive based contracts seems to have worked pretty well, he can then extend or finish contracts as he sees fit, it is almost like having them on long term loans.
If he can't get anybody that will improve what he already has, I can't really see any point in firing a load of cash at it.