Help with file space issue...

On my phone it says in options>status>file total: 54919168bytes and file free: 20490124bytes. What exactly does all this mean? Is 54 how much I am using or have? and 20what I have left to use? is that good? I have deleted unused apps. sample video etc.. according to bb faqs (how do I free up memory on my device?).
So am I okay on my file space? can I handle more apps? orshould I stop?
I have downloaded viigo; opera mini; grid magic; expensemanager; empower mail viewer. And also, are there apps. that you recommend Ihave if I have room? thanks so much. di

20.4mb is your free memory. That is a good number. I recommend keeping your device (and mine, lol) at 15-16mb file free. Under that amount, we see too many users lose call logs and SMS messages.