Thanks guys. I think it's pretty safe to say I'm not going to get a conure, but I will probably be getting a bird. Again, I personally don't mind the noise, but my parents will, as will the neighbors in the apartment the bird and I will be living in. So these are the species I'm looking at now, in no particular order:

Black-capped caique
White-bellied caique
African gray
Meyers parrot
Indian ringneck parakeet
Rainbow lory (haven't done much research on the noise level for these yet)

Whether mom says yes or not, it'll take about a year to raise the $1200 needed for the bird and all the supplies, so I'll have plenty of time to do my research and get some suggestions from experts.