Adorama sells the 430ex for $250 is the 580ex II worth the extra $100? I know it has a faster recycle time, and it has weather sealing, but I'm not going to be using a flash in the rain. I'm tired of using my built in flash, i don't like the quality of the flash even with wb compensation. I don't want to buy the 430ex and find out it's only sub par. It looks like it has solid reviews, I just wanted some more opinions.