Nice size cage for a cockatiel for sure. Ditch the dowel perches though, and try to get some natural wood perches of a larger diameter than the dowels. Parrot feets need varying diameter perches to keep their feet in good condition. It would be like you wearing the same shoes, every day, all day and night.
Also, I would wait a bit on toys. Parrots can have strong opinions on what is fun to destroy and what is scary and will not touch them. So you try a shreddy paper toy, a colorful thin wood toy, etc. Once you know what he prefers you can not waste $$$ on toys that will not be played with. So my example: Salty will not touch any toy hanging in his cage, but loves foot toys on the bottom ( cups, jingle bell, soft wood blocks). But once he is out and on his play chain, he will play and destroy almost any hanging thing.
Cockies are on the small end of size, so make sure to get toys that are appropriate for him - a lot of bird stores tend to have toys for larger parrots. Good luck once you get your baby.