Traumas the ioSafe Solo can survive: Building collapse, 843C fire, 9m submersion in salt water and a 2267kg "crush force". So you might say it's durable.
It's pretty much the most disaster-proof external drive I've ever seen. It also has eSATA in addition to USB and a "no questions asked" policy with regards to data recovery (which is good - what kind of horrors are you subjecting this thing to if you need data recovery?). It'll be available in February in 64GB, 128GB and 256GB capacities for, as expected, the very high prices of $US500, $US750 and $US1250, respectively. [ioSafe]