I purchased a pair of standard relays, proper gauge wire, and the 80/100
watt replacements all for four headlights on my 91 Vanagon for a total
cost of $44.  These are essentially the same parts used by most retailers
with the exception of the relays not being manufactured by Bosch.

I really appreciate the additional visibility while driving at night and
like the fact that I'm getting it without blinding other drivers.

Here's a parts list and the places where I got the parts.  I'd rate this
job as very simple and I'm electrically challenged!

Desc Units  Unit Price   Total Price  Vendor

HL78179 9004/HB1 100/80w Replacement Bulb - 2 - $10.75 - $21.50
http://www.rallylights.com/

78140Y H3 110W Yellow Star Replacement Bulb - 2 - $8.06 - $16.12
http://www.rallylights.com/

12V 30/40A RELAYS W/ DUAL SOCKET & 5 WIRE HARNESS - 1 - $3.98 - $3.98
http://stores.ebay.com/12-Volt-Parts

24" 12# Brown Wire 1
24" 12# Red Wire 1
12# Female Spade Connectors - 16 - $0.15 - $2.40
_______________________________________________________
TOTAL COST    $44.00

Brent
http://www.weidefamily.net/vanagon/