Not a simple answer to that.
I don't think any of the cheaper NAS drives are that perfect. I've tried Lacie, Maxtor, NetGear and Iomega and all of them are irritating to some degree.
My inclination is to go for the cheapest with a gigabit interface if all you're after is a single drive. If you're after something a bit more like a little server then the NetGear ReadyNAS units are available with versions that will take more than one drive so they can be expanded.
If they have USB interfaces this may look like a benefit but chances are it will require a driver to make it look like a network interface. This is due to the disk file system being under control of the network file server software in the drive. And that driver may not work well depending on your actual network setup. So don't pay extra for USB unless you really think you'll use it.