Hopefully this is a simple question.  Looking to have a button on Contracts layout that will create a new instance of an Asset with assigned values.  Specifically the contract number and account name already populated based on the values (Account name and contract number) in the contract.

Current method in place will populate one of the numbers (but not both) and force the user to pick from a generated filtered search (Beta stuff under buttons).  Not bad for starters, however this leaves room for error and becomes very slow when number of accounts/contracts becomes large.

I am now starting down the VisualForce path to see if this is what I need to do

Suggestions?