Gortexfogg

I'm going to be taking my PC with me on an airplane soon and was wondering if anyone had any tips for packing it. It's a mid size tower, so too big to carry on and I'll have to check it. My only ideas now are sticking it in the original case box and wrapping that in bubble wrap or foam and putting that in a slightly larger box. If this doesn't sound like a safe bet for my PC, any tips would be great.

Thanks.