As a point of preference, I prefer the unless blocks also.. I generally use them in just such a situation, and besides not missing the ! in the !condition, when I see an unless block I know that I'm generally handling failure. I know... in all conditional blocks, you're acting upon something either 'succeeding' or 'failing', but when I'm specifically putting something in there that is mainly sort-of error checking things that I'm assuming (files exist and are openable, etc.), I'll use unless.

-=rev=-