Putting this out there to see if this is a service that is needed.
I have BTC and NXT that i will loan out for short term loans. I will be needing liquid assets as collateral at 120% of current market pricing. This is to protect me just in case there is fluctuations in the asset price. When the loan is paid back, the collateral will be returned.
Please let me know if you are after this type of service.