>I am no expert, but I thought the whole point of cross
>drilling was to dissipate heat.

Yes this is why racing vehicles HAVE to have cross drilled rotors.
Otherwise they would EXPLODE.  Does a Vanagon need cross drilled rotors? -
NO.  Not gonna feel any benefit unless you are a brake pad manufacturer.
Eats pads.

Slotted/vented rotors are the highest performance rotor you should go with
on a street vehicle IMHO.  Quality brake pads like Mintex or Ferodo along
with quality brake fluid like ATE or Pentosin will make a bigger difference
on stock rotors than any big brake kit.  Unless of course you are adding
more pucks (pistons) to your calipers which I don't think is available for
the Vanagon.  I'm sure if one spent enough money though you could get a 4
piston StopTech or Bembro system with 11" slotted/crossdrilled rotors fitted
to the Vanagon.  But what's the point.

Rich Blake