Might wanna be careful with how you utilize this.
When I was new, it was pretty easy for me to make a 1 gig design on accident, and some Webhosts get very picky about space usage on the server, and upload amounts to the server.
Also, if it's just a link from your homepage, someone might abuse it to store illegal files as well.
If you find a script that only accepts certain types of files, and also stores them in a private location unavailable to the general public, you should be fine. Then all you have to worry about is the designer who made a 1 gig file out of a simple sentence of text, or the like
