A coworker has been introduced to the amazing capabilities of a hot-shoe flash, and is looking for a budget flash that'll work well for personal use. He's not planning on a strobist setup of any type. I have the 430EX and love it. Looks like they're going new for $199, and used for $160+. The 430EX Mark II has a few differences, for a total of $242 Metal shoe mount 180-degree swivel in both directions (opposed to 180/90 on the MK I 20% faster recycle time Question is...are there any cheaper options than the 430EX for $199? I see Sigma has two options, the [ame="http://www.amazon.com/Sigma-EF-530-Electronic-Flash-Canon/dp/B000UH2K56/ref=sr_1_2?ie=UTF8&s=photo&qid=1230652589&sr=1-2"]530 for $147[/ame], and the [ame="http://www.amazon.com/Sigma-EF-530-Super-Electronic-Flash/dp/B000UHIMG2/ref=sr_1_3?ie=UTF8&s=photo&qid=1230652589&sr=1-3"]530 Super for $202[/ame]. What drawbacks exist when going with the Sigma route?