Thanks, everyone. I've used the old PSP, what it could do seemed pretty intuitive to me (Even years ago, it just ran too slowly on machines I had to be practical, though: I'd occasionally run it for one little thing or another, definitely was a resource-hog.)
The Photoshop options do have that advantage of more expertise to draw on out there, (and here, I suppose.) We should be able to take advantage of the student discount, (People in graduate programs qualify?) at that, now that it's mentioned. Still would be a pretty major outlay for me, though, I'm kind of on shoestrings.
I suppose I'll just have a peek at the trial versions and see if one makes a stronger impression. Probably leaning toward the PSE just cause there's more help out there, but who knows. Can't say I have a 'style' yet: I'll probably just be happy to shoot some RAW.
I'll surely do a lot of monochrome, ...I like the high ISO, probably won't get too fancy, but who knows.
Maybe some selective color: always wished I could do that back in film days. Can do that out of the back of my camera, but rarely seem to.
Might like to throw some of my poetry in frame on occasion, so being good with text wouldn't hurt. But, we'll see.
Thanks, everyone.