Photoshop? For what most of us do, GIMP is actually more than sufficient. I know many professional photographers who do the majority of their post processing in GIMP.
GIMP's functionality is aces, but its interface sucks. It's a halfway clone of Photoshop that doesn't actually finish the cloning and is thus not nearly as usable. I haven't gotten a chance to try "single-window mode" in GIMP, but I would be very surprised if it was much better, given how braindead the UI was before - though at least it shouldn't be spraying windows all over creation and not even showing enough intelligence to keep its own document windows from overlapping its tool palettes, anymore.
These are fantastic software packages, not half-arsed buggy 'compile from source', 'lib dependency hell' packages. Most software you could ever want is available in standard (or extended) repos. It just works.
And as long as "most software you could ever want" (read: whatever software the maintainers have felt like adding) is good enough, then you only have to worry about the baffling number of packages that, say, Synaptic concludes are mutually exclusive even though they have nothing to do with each other, or that depend on libraries that will muck up existing libraries that other applications depend on (yay, PulseAudio!)
And when the program you want
isn't in the repository, well, it
isn't. You get to build it from source anyway, because the developer might have one old compile for one of the eleventy billion deprecated ABI versions on whichever architecture they happen to use, which is invariably different from whatever your setup is. And of course you'll have to install all the prerequisite libraries, hopefully
they're in the repository, and in versions that are compatible with the program you're trying to build!
As for drivers, I've not had any driver issues for years.
Why is it that so many people think "well
I've never had any trouble!" is a meaningful response to the people who
have?Check out these packages, then their windows (or OSX) equivalents (and their costs) and you may find yourself reconsidering Linux.
GIMP: http://www.gimp.org/
GIMP is the last straw that drove me
away from Linux.
Your decade (or more) worth of Windows experience may not be easily transferable, but then this would be equally true if you moved to OSX (which is also rock solid with superb applications), or any other desktop OS.
Actually, I've had a
much easier time of it acclimating to OSX merely on a
hobby basis when using my PowerBook for writing purposes than I did in my
multiple attempts to fully switch over to Linux on a daily-driver basis.