Possible cost-effective methods to store files (100GB+) online

[Jeru]

We are looking for a cost-effective way to store large number of files online. There are a few requirements:

- starting with 100GB, upscaling need to be possible.
- possibility to upload files via .ftp from a .php script on our domain
- possibility to create folders via .ftp from a .php script on our domain
- possibility to download files over https - called from a script on our domain
- possibility to view images over https (ssl support) - called from a script on our domain
- reliable company with reliable services

We have our site running on our own VPS, but extending will cost $3 per extra GB. That's a bit too much for our needs.
What would be a good solution?

[ineedwebsite]

I don't want to recommend any particular hosting solution, but if you search for unlimited disk space hosting account you may find a lot of them. I suggest that you use this type of account on a shared or a cloud hosting just to store files.

Then you can ftp files from php on your website and then download them.