Software Pirating

I'm considering selling my PC and just running a MAC only operation.
Haven't decided yet, but in the deliberations I was looking at what
software I would lose. Photoshop is the only critical piece of
software that I don't have for the MAC. Ironic really, since the
program is developed foremost for Apple. Also, I realized that it is
the only piece of software that I have pirated. Everything else I
own, i have purchased legitimately. To purchase photoshop, however,
would be a $300 investment (with student discount, $600 without).
The alternative is to purchase Photoshop elements ($50), which hasn't
even come out for mac's in edition 4.0. But after using Photoshop
CS2 for so long, it would be painful to downgrade. What software
titles do you own that are in the "can't live without, can't afford
to buy" category?