Manager of a large equine facility that offered not just boarding, but training, multiple day horse shows, clinics – all sorts of horsey activities on a big scale. I can do the the day to day operations of the barn, publicity, show organization, budget and finance and getting volunteers. That would be my dream job.
Full-time chorister at the Met. Although with the current labor dispute and budget concerns, it looks less and less attractive. But guaranteed 200k (our so) a year without needing to audition for every job? Thanks!
My education and experience is all with computer science and related fields. My dream job would be something that includes those skills, providing an intellectual challenge, but would also provide significant creative outlet. But I also like to just get a good project and be left alone to get it done then get my next one. So, I’d kinda be lead to think I’d really like to do some kind of higher level software design or even a director or lead of some sort in that field. I’m certainly qualified, or very nearly so such that I could reasonably get the skills I’m lacking in a short period.
Hell, I’d jump at a job like that even if it offered less money than I’m making now, though realistically I’d make more. Frankly, as long as I make enough money to meet my needs and a few number of my wants, I’d take job satisfaction over more money any day.
Director or VP of Information Technology, in town in which I live (I’m Director of IT now, but my job is 30 miles away from home, 90-minute+ commute each way).
There’s a couple jobs at Google I am very well qualified for…
If I were offered a job as a trial court or intermediate appellate court judge (state court) I would not immediately accept it (I would think about it). If I were offered a Federal Judgeship or a spot on our state Supreme Court, I would immediately accept. I Other than that, I can’t think of another position I’m qualified to hold that I would switch jobs for.
Apprentice to the Personal Assistant to someone really important.
I’d make really good coffee and score the important dude’s illicit necessities.
You’re hired! 
Working for a charity, doing some behind the scenes organization work, and occasionally running events. But I’m not sure which charity, so I’ll have to wait until they offer me the job.
Also, I need to wait until I’m rich, so I can afford to do it.
Novelist. I’d love to make enough writing that I could quit my job…writing. (I’m a technical writer by day, novelist by night (and lunch hours)). 
I love my job at present, but I’d be happier if I could do the exact same thing but live in the Bay Area, rather than up here.
Hmmm…
Ideally I’d like to write for a living, but I am terrible at actually finishing projects.
Maybe data entry, from home. Part-time hours, full-time salary and benefits. It wouldn’t be the most fulfilling job, but I’d be good at it, and since it would be part-time, I’d still have time to manage my health problems and keep an eye on my mother.
Extremely unrealistic, I know. 
I just want a job in sales. I work in business development now for a good company, but I’d rather be doing outside sales for a legitimate company (no door-to-door home remodeling sales, etc.) - something like Kellogg, Pfizer, or A beverage company would be fantastic. I just hate being constrained to a cubicle for 9 months a year; I only get out in the field during conference season right now.
A galley-slave drum beater on a quinquereme complete with Ginger Bakerdrum solos.
I’ve often thought about that… apparently I sound something like Bob Phillips from Texas Country Reporter.
No idea how I’d actually break into it, and no idea how steady or viable it actually is as a career, assuming you’re not Don LaFontaine, Hank Azaria or Billy West’s caliber.
Lexicographer
I’d want a version of Harvey Kietel’s character on Pulp Fiction, The Cleaner, although a tad less murder-y. People would bring me their problems and I’d get things sorted out, for a modest fee of course.
Oh, I know- different strokes for different folks, and all that.
What I meant was more that some of those jobs aren’t so unreachable as to be a “dream”, and if they are, then the bar’s set pretty low. Being a DBA for example isn’t something like say… being a rock star, that takes a lot of talent, luck and looks to be really successful at.
Tell that to Mick Jagger, Rick Ocasek, and Steven Tyler.
Professor or astronaut. I know I’ll sadly never go into space, but I can still hope to be offered a professorship someday.