I've got a couple of the older generation Lacie Rugged orange drives and they are good. The robust enclosure just gives a bit of peace of mind if you have to lug around backups offsite everyday.
I just wish someone out there would make an enclosure like that (but perhaps even better) so you could fit your own drive. I'd be tempted to stick an SSD in one for added shock proofery, though SSDs aren't exactly renowned for their data reliability just yet.
What I'd also like to see is someone create an mSATA enclosure to fit these types of SSD... http://regmedia.co.uk/2010/11/08/blade_1.jpg
120GB+ of rapid shock-proof storage in something smaller than a 2.5" enclosure would be excellent.