you can buy good priced digi ballasts on ebay that are brand new man, im gonna get this 250 watt digi that has the light and the reflector and cables for only 150 includeing shiping, the same guy that im gonna get my digi from has 400 watt to, heres the link

400 W HPS Digital Ballast Econo Reflector Bulb KIT watt - (item 330141481000 end time Aug-28-07 04:46:10 PDT),

and it comes with the lamp the ballast the cables and the reflector, the reflector isint the best one you could get but for that price i say its a damn good deal,

peace out TjM