I've tried tons of different drives over the years.
No problems with Lacie being reliable, but hated that they (I had 6 / 500GB) didn't have on and off switch.
I replaced them with Fathom brand 2TB drives on sale at Buy.com for $99.95 a couple of months back. The drives are Hatachi inside, but cases are cool looking and have on of switch. Mine have USB 2 and eSATA.
Another option, and bit cheaper, is to buy a decent external case as some guys mentioned, then add the drives you prefer or use extra drives you have around. My favorite external case is made by CoolMax and available on NewEgg (
http://newegg.com/ )