I'm a college student, currently jobless. My opinion on piracy is that it's a morally neutral event - you're not right in doing it, and you should pursue better alternatives, but, in itself, it's not morally wrong.

Depending on the exact circumstances, this gets modified slightly - how much profit is the person/company making here, how much profit should they make off what you're pirating (to the best of one's judging ability)?

I have a game (Gratuitous Space Battles) that I've bought (inc. every DLC expansion pack) - made by an independent game developer. I always felt it was worth paying full price for it. I think pirating anything that has an as-good (or good enough for your purposes) open source alternative is morally worse than doing the same for something that has no such alternative, because you're also contributing to the spread of the proprietary standards with the former, while the latter is conceivably reasonably necessary.

Also, note that I hold software piracy and entertainment media piracy (or whatever you'd call movies, books, music, etc) as different things. They are very related and close, but different nonetheless. Again, whether or not I feel there should be payment for such things (and by extension how 'wrong' pirating that particular thing is - with the default, all else being equal position being that it's neutral morally) is linked to how much I believe a person/group/company deserves that profit, etc. I'm more likely to pay an artist directly, or 'donate'/gift them money, than to pay a company in the record industry, for instance.

(By a similar token, when I DO have a job I intend to donate decent chunks of money to open source projects on par with proprietary software.)

- Edit -

Texrat posted while I was typing, about how digital goods represent a service. I wanted to say that I agree with that with principle. And in practice, I would take that into account as part of "certain circumstances" and so on. To be honest almost every ethics opinion I have is, well, too in-depth to cover in a forum post.

To answer the OP's question in a more blunt and concise manner, though: Unless you can argue that the software is something so important to your (or others') quality of life being above a reasonable minimal standard, present or future, that it's morally wrong for the other party to not give away that software (I would claim that can be the case in the modern world, but it's relatively rare) for free, then you can't say that it's morally right for you to pirate it. Is it 'ok' in that it's not unethical - I would say there's a decent window for that, but depending on what software you want and how much you need it, and how much the makers of it are impacted by you not paying them, there's still a decent possibility that it does cross over into what I'd consider unethical.