The drive on it's own is £58.23 on ebuyer.
I ordered this on Saturday and it has just been shipped. I didn't want to post this deal earlier because play often just cancel orders if it misprices something but this one has gone through. It says available in 4-5 days now but it is definately worth a punt because it costs less than the 320GB USB 2 version.
This is a 7200RPM USB 3.0 hard drive where most USB drives are 5400RPM. USB 3 is new technology that gives you faster transfer speeds and shorter seek times but is also backwards compatible with USB 2. You will need USB 3 ports on your computer to take full advantage although buffalo do an expresscard adapter for about £25. This drive is also rugged. The ruggedness is the reason I looked into these LaCies in in the first place. I killed a WD passport when it fell off my desk while in use. The RRP on this is £130ish and they usually sell for over £100.
PS. I know it is a bit ugly.