Problem with ballast, already replaced ignitor

So, about a week ago i noticed one of my 1000w lights was not working. It still makes its buzzing sound when plugged in but the bulb isn't igniting... so I immediately replaced the ignitor and its still not working. The caps (theres 2 small ones instead of 1 large one) look perfectly fine, i was under the impression that when the caps go the bulb would still try to ignite and they would be leaking or bulging. idk, any ideas?

Maybe it's the bulb?

sorry i should have mentioned, definitely not the bulb, i have a lot of extras and none of the bulbs work

OK, i just moved the light downstairs, still nothing... damn.. I'm looking online for new caps and it seems that they are priced at $43 per.. thats $86 +shipping, damn..plus the 15 I paid for the ignitor, then i am at the cost of a new ballast if i order those caps ... looks like i might as well just buy a new ballast dang... Do i have to get the exact same caps? These are the replacements http://www.hydrofarm.com/product.php?itemid=1190

Anyone know if I can just use cheaper capacitors meant for the 1000w sodiums?