1. A method for determining a consolidation solution for a plurality of computer systems, said method comprising: generating a first candidate consolidation solution using compatibilities between said plurality of computer systems, said first consolidation solution comprising one or more transfer sets, each transfer set indicating one or more of said computer systems capable of being transferred to a target computer system; generating at least one additional candidate consolidation solution for the same plurality of computer systems by varying at least one parameter used in selecting corresponding transfer sets for each additional consolidation solution; providing a plurality of candidate consolidation solutions using said first candidate consolidation solution and said at least one additional consolidation solution; collectively evaluating said plurality of candidate consolidation solutions against each other according to at least one criterion and selecting a desired one of said plurality of candidate consolidation solutions; and providing said desired one as said consolidation solution for said plurality of computer systems.