I am looking for the best file hosting script out there.
exs. zshare/rapidshare that style.
I want something that can handle large file sizes and is secure most of all.

i have heard of Yabsoft but i have a really mixed response to this company.
What do you all think?

here is there link: http://yabsoft.com/mfhs-feature.php

Take a look at this one:
http://www.arwscripts.com/file-hosting-script.html

I've had used the image hosting script from this company and it's not bad. It's basic but it does the job well. The file hosting version is definitely a bit more advanced and it has the membership options.