Oh yah, I forgot they don't list their file server plans.
Let me see if I can find the link the owner gave me to sign up with so I could get the file storage stuff. Won't really be able to find it for another 6-ish hours or so though.
They're a good company, run by really nice folks. I seriously doubt that they'd limit you even if they feel you "start using too much". I've never been happier with my VPS provider than I am with Fliphost. But I came from a Dreamhost VPS...meh.