[ubuntu] Changing Non-boot HDD permissions.

Situation:

I have two disk drives inside my system: a 250GB SSD OS boot drive, and a 2TB HDD which I would like to use for storage.

Now, I have full read/write access to the boot drive, but when I format the HDD as ext4, I can't access it! Permissions list the owner as 'root', and that's not me. How can I change the permissions so that I can have read/write access on the drive, short of formatting it FAT32?

Thanks in advance.