I do second Riamus2's opinion ("opinion" as in most cases, it's a matter of personal preference or style).
I'm putting virtually all brackets, be it { } arround commands or ( ) arround conditions, no matter how simple or complex the condition/command part is.
There had been much talk about speed issues - issues that will
rarely matter in practise...
Imho, the most univocal style is the best: best for others who want to understand that particular piece of code, and best for oneself - everyone who wanted to modify a script he has written a jear or so ago will know what I mean.
