Nikola,
You can check out our company,
www.EastSolid.com
You will need to our Mega Reseller plan
http://www.eastsolid.com/reseller/mega.php in order to reach your 100GB diskspace requirement.
Feel free to PM me, or email us
sales@eastsolid.com (
http://www.eastsolid.com/company/contact.php)
Thanks,
Adam