Wanted to thank everyone here for their suggestions. Yes, $600 is a lot of money in general, not just for an ETX. I was hoping to spend no more than $300 complete for the setup (including a tripod of some sort), which shouldn't be THAT hard as long as I limit myself to lower-end, used models with generic rather than premium eyepieces. What I need would be:
-80-90mm refractor or 90mm Maksutov.
-Sturdy alt-az mount.
-Red dot pointer.
-Eyepieces providing powers of 50x or lower, 100x or thereabouts, and 150x or higher. The scope I get probably won't be able to handle 200x anyway.
What I don't need:
-Equatorial mount, because I'd never bother to polar align it and it's harder to use anyway.
-Magnifying finder scope, because I can usually find stuff on the first shot with a red dot pointer, and magnifying finder scopes confuse the heck out of me.
-Wide-field eyepieces. As much as I love them (and I've owned a few in the past), they're an expensive luxury, not a necessity.
-Filters, go-to systems, enhanced coatings/mirrors/optics, motor drives, widgets, and gizmos. Some of these are useful if you know what you're doing. Some aren't. None apply to me.
I will also admit that after owning a Newtonian reflector, I'm paranoid about collimation. I don't want to have to collimate my scope, which is one reason I was looking at a Mak in the first place (plus the fact that Maks are so compact). My Dob was a great scope but I hated worrying about collimation, especially since the collimation screws on mine never worked very well, and I was never sure exactly how to do it anyway. I don't expect great optics, just something pretty good that won't require excessive tinkering. If I have to collimate, fine, but I want it to be a simple procedure that I only have to do once... with my reflector, I was always thinking about those people who collimate every single night, wondering if I should do the same.
I realize some of you have a huge amount of money dedicated to your hobby, with people talking about Questars, 9.25" SCTs, and $400+ ED refractor OTAs (and yes I know that there are 80mm refractors that go for nearly 10x as much as the Orion), but I am just a poor college student with a low paying job and tuition bills to pay. I might be able to stretch and make it to $400 for a setup but I absolutely don't want to go over $400 for everything, and $300 is really a better estimate of what I'd like to spend (maybe $350 after eyepieces, tripod, and other accessories).
I've heard great things about Stellarvue refractors - good build quality, compact, sturdy, and with good optics. There are also those generic 80mm short tube refractors that are under $100 used these days, and 90mm Maksutov OTAs that cost no more than $200. As much as I'd love a Stellarvue I might have to either get a cheaper one or wait longer. I'm already planning on waiting until sometime in February, but I might instead buy sometime in summer, after school is out.