1)
free user 100kbps, registered user 200kbps...?? resume support for free user...???
that is, if it struck at some point means, resume....???

2)
Start with mass storage, because cash whores have some tb's of data each.
space...??

3)
Zoom uploader and jdownloader......?? , rapidleech plugin is fine, apply for sborg too

4)
embedding allowed.....??

5)
ads, pop up......?? please don't use it, use static ads