What you can do when you need to shift data from one PC to another PC of large size, or say you want to access your data from any place of world.
Dropbox is a service, which is a free and paid service, allows you to drop your files on online Harddisk (WebDisk) which you can access from anywhere you have Internet.
DropBox allows you to store up to 2 GB in free plan. If you need more storage you will have to pay for it.
Dropbox is for people
2GB is less space though in free account, hope they will increase it by time going.If you know any other similar service let me know.
Link to DropBox: Get DropBox