Okay, I need to get an off-camera flash for my XS (1000D). I can't afford a 430 EX-II right now. The 580? Fuggeddaboudit. Got a kid I'm putting through college, and it's using up almost all my resources. I can probably fit an aftermarket in my budget though, which is maxed out at $150. I see that Sigma, Sunpak, and Vivitar make some flashes that look to be roughly equivalent to the 430 and that fit within my budget. I've never owned a Sigma or Sunpak, but I've owned a few Vivitars over the years, including the venerable old 285HV. Just wondering if any folks here might have an opinion on a flash that will come close to the 430 in performance and value?