Pelleted diet are a good idea, as they are more balanced than seed diets. I used to feed Tropican. You can supplement the seed diet with a product called Prime (smells great, but don't taste it... it's nasty!), just in case you end up needing to stick with it. Make sure you're not switching over instantly. Slowly introduce the pelleted diet to your budgie. Some refuse to switch, so don't be upset if you're budgie prefers seed
Another thing to remember is just because the pellet is more balanced doesn't mean you should skip on the fruits and veggies, cooked pasta, etc.
"He is your friend, your partner, your defender, your dog. You are his life, his love, his leader. He will be yours, faithful and true, to the last beat of his heart. You owe it to him to be worthy of such devotion."