actually... there is one way to dowload many files from megaupload or any other site, normally i download from 4gb to 8gb in one day, it´s not risky (i found it 4 years ago and still don't have any problem), just search
"AOL
tutorial"
I can use an USA ip all the day, if i reach the limit in megaupload or any other site(rapidshare, fileshare, etc), i just need to restart the AOL and got a new IP, try it with jDownloader and well... premium account? no thanks