Thanks for the input everyone!! =D
I actually have visited an aviary with sun conures a while ago and the other day I found a Caique at a pet shop in my area and I must say that between the two of them, the caique was much, MUCH quieter. I played with her for about half an hour to fourty-five minutes and she didn't really make any loud screams like the conures, but babbled on in birdy language quietly and mimicked a couple of whistles! It was really very cute.
To be honest, upon handling the two of them, I found myself much more comfortable with the Caique. She was a bit heavier then her small size made her appear! She was also alot more affectionate and cuddley then the conure I handled at the breeder's. The conure was cute and affectionate, but she was a little nippy and kind of made me nervous with her quick actions; as though she was scared of me even though her breeder was right next to me. The caique on the other hand was content to sit on my lap and be petted, as well as playing with a pen on the table in the little "playroom" the shop had set up for previews.
So I think I'm definitely going to have to go for the Caique! Sorry to all the conure lovers out there! I'm going to try and contact a breeder in my area and find a handfed baby to purchase in about a month when my bird room is prepped and everything's ready to go. I don't want to rush into this, I'd rather have everything good to go and have food stocked to be sure the new baby will be comfy and stress-free.
Thanks again for all the help everyone!