The files that I use are about 600 gb. Currently when I am away from home I use a program called Remote Utilities to connect to my home PC and work directly. This is mostly acceptable, however subject to whatever interference or internet slowdowns on either end. I can load the software I use on a laptop, however I want the "home" files to be current wherever I am. Do you have an online service you recommend to store your work that is reliable and secure and not over the top expensive?