Ahh, I love this film too, and sadly, I found the DPS fandom surprisingly small...however, flicking over to ff.net, I just saw that the archive there has increased dramatically since I last visited the DPS section. So if you haven't searched through there for any crossovers, then you should.
ff.net's DPS arcive (http://www.fanfiction.net/movie/Dead_Poets_Society/10/0/1/1/0/0/0/0/0/1/)
the only DPS crossovers in the House ff.net archive (http://www.fanfiction.net/search.php?field=summary&plus_keywords=Dead+Poets&minus_keywords=&categoryid=1968&languageid=0&censorid=0&statusid=0&sort=0&genreid=0&subgenreid=0&characterid=0&subcharacterid=0&words=0)

You may also want to check out: dps_fans, weltonacademy and as a last resort; dps_love.

Eventually, I'll write a DPS/HouseMD crossover, but then, we'll drive flying cars, eventually. ;) Goodluck searching!