Quote Originally Posted by -EnVus- View Post
I am not looking to do photo-shoots for a living just take good clean photos....What is the cheapest but still good flash to use with my Canon Xsi ?
Cheapest decent option: Yongnuo YN-467 II - You want an e-TTL flash.
YONGNUO YN 467 II ETTL Flash Speedlite for Canon 450D 400D 500D 550D 1000D 847977039851 | eBay

The step up from the YN-467 II: Yongnuo YN-565
Multi Function YONGNUO YN565EX Flash Speedlight TTL Speedlite GN 58 6947110910406 | eBay

I think that they have a new one out also, that I didn't bother to look for.

Canon's Speedlite 430EX II Flash is more expensive, but it is Canon.