Today , I came to read some nice blog post by Microsoft regarding the data loading process.

If your company needs to load the maximum data then I think this post would be really helpful.
If you want to load 1TB data in just 30 Minutes with SSIS then.. Plz read this post by Microsoft.
http://msdn.microsoft.com/en-us/library/dd537533(v=SQL.100).aspx

since, the article was posted long time ago but might be helpful for the one who is just looking for this kind of approach.
Though ,I could not tried it out but sooner or later I would definitely like to test this process too.

Thanks,
Anil Maharjan