[eric]

I have been asked to bring  some home brew to a Grad party this summer.  I was thinking of a keg system. What are the pit falls? What is the best way to keep the beer cold?

[BrewArk]

Depends on the size of your party, if you've already invested in kegging equipment (if you'll be using it thereafter)/can afford it etc.  For me, I keg all my brews.  I keep it in an old fridge w/a controller to keep it up to cellar temp.  For a party away from home, I've put it in one of those big keg tubs for the commercial kegs.  It's a good excuse to get out of bottling if you can afford the investment.

Consider getting a keg of a good craft brew if 5 gallons isn't gonna be enough?