Advice on Expensive $oftware

ferris bueller

Hello,

my company recently asked me to look into procuring some software to do thermal analysis of our PCB designs. I am primarily concerned with calculating junction temperatures of the boards, but would eventually like to get into heat dissipation and stress analysis of the complete system. Two packages that caught my eye were FloTherm and FloTherm.pcb, but they are prohibitively expensive. We cannot justify the cost due to the limited volume we produce. So what alternatives are there? Has anyone bought a second-hand or OEM license of an older version? Is there similar software I could use that costs less than five grand? Thanks in advance for your help.