cage set up

Hi everyone, I plan on getting a new cage for my birdies- this is my current set up which sufficed for just Ollie, and Budd when it was his before him. The sizing is 60x40x40. I'm not sure if this is big enough for both my birds, but if it is, it's pushing it. I want them to have more space but...

Wow! I can't believe that this is my 1000th post! I absolutely love this community and only wish that I had more time to hang out and read. Talk Budgies users have been so helpful during these first months with Sammy - from his crop infection to yeast infection to mega bacterias to heavy metal...