FX 6600 or FX 6600 LE? what's the difference?

I am a big nVIDIA fan and im planning to buy a new video card…i don’t have the money to buy the nVIDIA 7800 nor the 6800 one. i can only afford to buy the nVIDIA 6600. but i got kinda confused becuase they released certain versions of the cards with different prices. they have the LE (light edition), OC, and the plain 6600 card…i was confused of which card to buy…you know all of us want to get the best out of our hard earned cash right? so im asking for some advice from you guys about which 6600 card should i get? thanks in advance :azn: