Ditto on what he said...you can get led strips on ebay for pretty good prices....
Browsed 12v LED in the search and found these in two secs:
http://cgi.ebay.com/ebaymotors/LED-...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
48cm = about 1 1/2 feet.... that;s alot more light than 4 inch led pods (x4)