Just a warning about budgies, Like Copper said, unless you get a hand fed baby you might be a little disappointed in their affection level.
I got a very young budgie from a pet store by my house because I missed having them. (I used to breed them.) They ARE chatty. Budgies make quite a bit of noise, if you go with a single budgie you will have to spend a lot of time with it, working with it because you will be its flock. If you don't spend a lot of time with him he won't be affectionate and will probably be quite sad because he would feel alone with no flock. They fly pretty well, even with clipped wings, so if you open windows with no screens or have other pets be aware of this. They can very easily break their neck if spooked and they fly against a window or wall too. They do poop quite a bit too, so keep this in mind. Their poops are small but they produce quite a few! (especially it seems where you don't want them to LOL)
If you like birds though they do make great pets, I like their calling and chatter. If I were you i'd find good budgie\bird websites and research a lot. They also smell like fresh hay... I love how they smell lol (Each parrot/bird has a different scent- I know that was kind of random, but seriously budgies smell wonderful LOL) If I remember correctly they live about 10 years? - Don't quote me on that though it might be longer/shorter?
I know this is going to sound silly to some people, but our ring neck dove is probably the best bird around. (Pet wise) They don't bite, they walk around on the floor, sit on your finger, their calls are nice and relaxing, Ours lets you scratch her head and she isn't too skittish. She "be-bops" around the floor investigating when I get her in a safe room away from the dogs. They are good with kids. (as long as the kids are good with birds, otherwise the kids could kill or hurt them!!!!!)
If you can get over them not being as beautiful as a budgie.
Anyway good luck making your decision, and happy researching!
Both are great birds, I am not sure what exactly your looking for, but at least look up doves, they are often overlooked and are so so so sweet.