SBev
Basic algebra, linear algebra, abstract algebra, discrete math... I apply concepts from these areas constantly.
http://www.ted.com/index.php/talks/bill_strickland_makes_cha...
In a prior job the company I was with renamed itself. The branding consultants and executive management found the perfect name and started moving forward with all the changes. Then they asked my VP about the websites and such. Of course the name was already registered. After approaching the domain owner about the name he requested $50,000. After haggling the domain owner happily took $20,000. My VP was actually authorized to spend $5 million to acquire that domain.
Point of the story, obviously want that domain badly so your initial amount should be painfully large. Just keep reminding your friend how (s)he felt the day all the legal paperwork was handed to him.